CN205138380U - Measure outer pitch diameter's device - Google Patents
Measure outer pitch diameter's device Download PDFInfo
- Publication number
- CN205138380U CN205138380U CN201520845031.7U CN201520845031U CN205138380U CN 205138380 U CN205138380 U CN 205138380U CN 201520845031 U CN201520845031 U CN 201520845031U CN 205138380 U CN205138380 U CN 205138380U
- Authority
- CN
- China
- Prior art keywords
- base
- support
- groove
- pitch diameter
- fixed support
- 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
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Abstract
The utility model relates to a measure outer pitch diameter's device belongs to analysis and survey control technical field. Fixed bolster and base fixed connection, there is the spout on the base, move movable support through direction muscle and spout sliding connection, there is the guide way on the base, the fixed bolster has the standing groove respectively with the top of moving movable support, this standing groove direction is unanimous with a fixed carrier shaft line, adjust foot stall portion and dodge the groove, this regulation seat is connected through screw and base and just is located the fixed bolster both sides, circular magnetic sheet is inhaled and is closed on one side what adjust the seat with the fixed bolster, dipperstick support and base fixed connection, insert ruler groove on the dipperstick support, the dipperstick with insert ruler groove and peg graft. The advantage is that small, with low costs, novel structure, flexible operation, commonality are strong, has improved measurement accuracy and work efficiency.
Description
Technical field
The utility model belongs to analysis and survey control technology field, particularly relates to a kind of device measuring pitch diameter of external thread, is applicable to worm measuring.
Background technology
60 ° are for metric thread and U.S. standard screw thread, two kinds of form of thread angles, directly can measure with pitch diameter of thread milscale; But when not possessing pitch diameter of thread milscale, and for inch screw thread (thread form angle 55 °), acme thread (thread form angle metric system 30 °, 29 ° made in U.S.A and made in Great Britain), worm screw etc., central diameter is measured very difficult.Now need to measure the pitch diameter of thread by three-needle measuring method.
The three-needle measuring pitch diameter of thread is a kind of method of indirect inspection central diameter, that three very high, that diameter is identical metering pins of precision are placed in the teeth groove of measured piece, measure three pin side dimension with measurement instrument such as the measurers such as milscale of measurement size, then according to formula, calculate the pitch diameter of thread.Current three pin values are measured generally by two kinds of methods: one is measure with special three pin value surveying instruments, and this method cost is high; Two is without instrument, measures with hand support measured piece and three pins, and because three pins and the fixing of measured piece will be completed by a hand, need skilled operation skill, it is low that this method measures efficiency.
Summary of the invention
The utility model provides a kind of device measuring pitch diameter of external thread, there is the inefficient problem of measurement to solve prior art.
The technical scheme that the utility model is taked is that fixed support is fixedly connected with base, and base has chute, and this chute direction is consistent with support bracket fastened axis, has guiding rib bottom traversing carriage, and this traversing carriage is connected with slide by guiding rib; Base there is gathering sill, this gathering sill direction is vertical with support bracket fastened axis direction, there is standing groove on the top of fixed support and traversing carriage respectively, this standing groove direction is consistent with fixed support axis, has escape groove bottom adjustment seat, and this adjustment seat to be connected with base by screw and to be positioned at fixed support both sides, circular magnetic sheet is inhaled and is closed on side in adjustment seat with fixed support, dip stick support is fixedly connected with base, dip stick support has slotting chi groove, dip stick and the grafting of slotting chi groove.
Described dip stick is the measurer of general measurement size.
Described dip stick is outside micrometer, dial gauge or vernier caliper.
Described slotting chi groove is tipper, and be 20-60 ° with vertical direction angle of inclination, channel opening direction upwards.
The utility model advantage is: novel structure, volume are little, cost is low, flexible operation, highly versatile, be convenient for measuring, and improves measurement accuracy and work efficiency.Measurement mechanism in the utility model is not limited to measurement external thread, also can measure the outside dimension of other cylindrical component, is widely used in machinery, automobile and other industries fields of measurement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model, and figure comprises measured piece and three pins;
Fig. 2 is wiring layout of the present utility model.
Embodiment
Fixed support 2 is fixedly connected with base 1, base 1 has chute 11, and this chute direction is consistent with the axis of fixed support 2, has guiding rib 12 bottom traversing carriage 4, and this traversing carriage 4 is slidably connected by guiding rib 12 and chute 11; Base 1 there is gathering sill 15, this gathering sill direction is vertical with the axis direction of fixed support 2, fixed support 2 has standing groove 13 respectively with the top of traversing carriage 4, this standing groove direction is consistent with fixed support 2 axis, escape groove 14 is had bottom adjustment seat 3, this adjustment seat 3 to be connected with base by screw 9 and to be positioned at fixed support 2 both sides, and circular magnetic sheet 10 is inhaled and closed on side in adjustment seat 3 with fixed support 2; Dip stick support 5 is fixedly connected with base 1, dip stick support 5 has slotting chi groove 17, dip stick 6 and the grafting of slotting chi groove.
Described dip stick 6 is measurers of general measurement size.
Described dip stick 6 is outside micrometer, dial gauge or vernier caliper.
Described slotting chi groove 17 is tipper, and be 20-60 ° with vertical direction angle of inclination, channel opening direction upwards.
In measuring process, as Fig. 1, shown in 2, base 1 is positioned on horizontal table, by two adjustment seats 3 by illustrated direction, be positioned in the gathering sill 15 of fixed support 2 both sides respectively, gib screw 9 is positioned over respectively in the threaded hole 16 on the corresponding base 1 of escape groove 14 below, do not tighten, circular magnetic sheet 10 is inhaled in adjustment seat 3 from the side that fixed support 2 closes on respectively by diagram, three pins 7 are inhaled respectively on circular magnetic sheet 10, by direction as shown, measured piece 8 is positioned in the standing groove 13 of fixed support 2, slow mobile adjustment seat 3, gradually near measured piece 8, adjust three pin 7 lateral attitude and angles of inclination, three pins 7 are leaned against in measured piece 8 teeth groove, just enter in worm screw teeth groove to be advisable with three pins, tighten gib screw 9, adjustment seat 3 is fixed, as longer in measured piece 8, can traversing carriage 4 be installed on base 1, during operation, guarantee that guiding rib 12 is put in chute 11, adjustment traversing carriage 4 position, support measured piece 8.
After three pins 7 install with measured piece 8, by direction as shown, dip stick support 5 is placed on base 1, the threaded hole 16 that fixed orifice 18 is corresponding with on base 1 aligns, by gib screw 9, dip stick support 5 is fixed on base 1, dip stick 6 is inserted by direction as shown and inserts in chi groove 17, adjustment dip stick 6 position, measures measured piece 8 three pin value M.
After measuring measured piece 8 three pin value M, three pin value M, three pin 7 diameter d of selection, thread pitch P, thread pressure angle α are substituted into formula below:
D=M-d[1+1/sin(α/2)]+P/2·cot(α/2)
The pitch diameter of thread D calculated.
Claims (4)
1. measure the device of pitch diameter of external thread for one kind, it is characterized in that the structure of described measurement mechanism is: fixed support is fixedly connected with base, base there is chute, this chute direction is consistent with support bracket fastened axis, have guiding rib bottom traversing carriage, this traversing carriage is connected with slide by guiding rib; Base there is gathering sill, this gathering sill direction is vertical with support bracket fastened axis direction, there is standing groove on the top of fixed support and traversing carriage respectively, this standing groove direction is consistent with fixed support axis, has escape groove bottom adjustment seat, and this adjustment seat to be connected with base by screw and to be positioned at fixed support both sides, circular magnetic sheet is inhaled and is closed on side in adjustment seat with fixed support, dip stick support is fixedly connected with base, dip stick support has slotting chi groove, dip stick and the grafting of slotting chi groove.
2. a kind of device measuring pitch diameter of external thread according to claim 1, is characterized in that: described dip stick is the measurer of general measurement size.
3. a kind of device measuring pitch diameter of external thread according to claim 2, is characterized in that: the measurer of described general measurement size is outside micrometer, dial gauge or vernier caliper.
4. a kind of device measuring pitch diameter of external thread according to claim 1, is characterized in that: described slotting chi groove is tipper, and be 20-60 ° with vertical direction angle of inclination, channel opening direction upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845031.7U CN205138380U (en) | 2015-10-28 | 2015-10-28 | Measure outer pitch diameter's device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520845031.7U CN205138380U (en) | 2015-10-28 | 2015-10-28 | Measure outer pitch diameter's device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205138380U true CN205138380U (en) | 2016-04-06 |
Family
ID=55624166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520845031.7U Expired - Fee Related CN205138380U (en) | 2015-10-28 | 2015-10-28 | Measure outer pitch diameter's device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205138380U (en) |
-
2015
- 2015-10-28 CN CN201520845031.7U patent/CN205138380U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20181028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |