CN101979953A - Three-dimensional fine-adjustment worktable for thread scanning meter - Google Patents

Three-dimensional fine-adjustment worktable for thread scanning meter Download PDF

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Publication number
CN101979953A
CN101979953A CN 201010513430 CN201010513430A CN101979953A CN 101979953 A CN101979953 A CN 101979953A CN 201010513430 CN201010513430 CN 201010513430 CN 201010513430 A CN201010513430 A CN 201010513430A CN 101979953 A CN101979953 A CN 101979953A
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China
Prior art keywords
worktable
layer
screw
dimensional fine
working
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Granted
Application number
CN 201010513430
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Chinese (zh)
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CN101979953B (en
Inventor
刘胜
唐觉明
潘颖
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Priority to CN201010513430A priority Critical patent/CN101979953B/en
Publication of CN101979953A publication Critical patent/CN101979953A/en
Application granted granted Critical
Publication of CN101979953B publication Critical patent/CN101979953B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to a thread meter, in particular to a three-dimensional fine-adjustment worktable for a thread scanning meter. In the prior art, due to the lack of the three-dimensional fine-adjustment worktable for the thread scanning meter, the thread metering is complex and the metering precision is low. In the three-dimensional fine-adjustment worktable, an upper worktable (8) is fixed with a pin shaft (7); an adjusting screw (10), the upper worktable (8) and the pin shaft (7) rotate together in a hole in a support (6); a middle layer (11) is provided with an adjusting screw rod (21) and an ejector pad (20); a groove is formed on the ejector pad (20), and the adjusting screw rod (21) extends into the groove; a base (12) is connected with guide rails (16) which are connected with a connecting block (15); the guide rail slide (14) is arranged on the lower part of the middle layer (11); and one end of the middle layer (11) is connected with a micrometer head (22). The worktable has the advantages that: the adjustment precision is high; the friction in rotation is small; and dovetail groove can be detached quickly and conveniently by vices.

Description

The special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set
Technical field
The present invention relates to the screw measurement instrument, the special-purpose three-dimensional fine setting worktable of specifically a kind of screw thread sweep measuring set.
Background technology
Be threaded owing to be connected firmly, assembling, convenient disassembly are widely used in various tool, product, the equipment.Because screw thread interchangeability is strong, the standardization level height is so need carry out strict detection to it.Existing screw thread sweep measuring set, tested part adopt the slip gauge locating device to fix, and this is for the detection fast and reliable of standard component and part commonly used.But in batches few part, perhaps big, the in irregular shape part of volume, the design of special-purpose slip gauge and make and will increase cost.For these irregular parts, prior art adopts the mode of three-dimensional fine setting worktable and special vice combination to substitute slip gauge.Part is fixed with special vice, be positioned on the three-dimensional fine setting worktable,, put in the positive dirction of screw thread sweep measuring set gauge head by range estimation; After measuring ridge with the screw thread sweep measuring set, draw the part axis of thread, around Y-axis with around the side-play amount of Z axle along Y-axis.Regulate three-dimensional fine setting worktable then, three side-play amounts be adjusted to zero, three-dimensional working platform along X-axis, along Y-axis, move the measurement of beginning screw thread along the Z axle.Chinese patent 200710133666.4, " three-dimensional working platform of contact pin type three-dimensional roughness measuring instrument " is because the applicable scope difference can not be used for the screw thread sweep measuring set.The three-dimensional working platform of this roughness measuring instrument simultaneously adopts worm-and-wheel gear that it is rotated around X, Y, Z axle, has 6 layers of structure, and bulky, complex structure, parts are many, cost is big.
The situation of prior art is not have the three-dimensional fine setting of special-purpose screw thread sweep measuring set worktable at present in the world, has caused screw measurement trouble, measuring accuracy not high.Therefore it is very necessary inventing the special-purpose three-dimensional fine setting worktable of a kind of screw thread sweep measuring set simple in structure, easy to operate, that measuring accuracy is high.
Summary of the invention
The purpose of this invention is to provide the special-purpose three-dimensional fine setting worktable of a kind of screw thread sweep measuring set simple in structure, easy to operate, that measuring accuracy is high.
The object of the present invention is achieved like this:
The special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set comprises upper working table, middle layer, base, milscale micrometer head, and upper working table and bearing pin are fixed together; The rotation set screw, upper working table and bearing pin rotate in the hole of supporting seat together; The middle layer is provided with adjusting screw(rod), pushing block, and pushing block and stationary table are together; Design groove on the pushing block, adjusting screw(rod) stretches in the groove; Base rail connects, and guide rail is connected with contiguous block; The guide rail slide has been located in the bottom in middle layer; One end in middle layer is connected with the milscale micrometer head.
Between upper working table and the set screw fulcrum ball is set.
Upper working table is provided with dovetail groove, is connected with special vice.
One end of guide rail is connected with the iron chains bar.
The position of screw measurement instrument of the present invention three-dimensional fine setting worktable and tested part as shown in Figure 1.The gauge head of screw measurement instrument is the prediction tested part earlier, from left to right measure tested part along X-axis, obtain a prediction straight line, can analyze the Y coordinate offset value y of tested part, around the angular deflection γ of Z axle with around the angular offset alpha of Y-axis with respect to the optimum position by the screw measurement instrument.Regulate three-dimensional working platform, make tested part be in the optimum position, formally measure then.
The three-dimensional fine setting of the present invention worktable is divided into three layers from top to bottom: rotate around Y-axis on the upper strata, and rotate around Z in the middle layer, and bottom is along the Y-axis rectilinear motion.
Upper working table leaves dovetail groove, and the special vice on the platform can be loaded and unloaded fast.Upper working table and bearing pin rotate set screw by screw retention together, and worktable and bearing pin rotate in the hole of supporting seat together, thereby realize the rotation of three-dimensional fine setting worktable around Y-axis.For reducing friction, the part fulcrum ball is set between set screw and the worktable.Since also need place other parts on the worktable, excessive for preventing the worktable degree of tilt, need the rotational travel of restriction around Y-axis.Pushing block and stationary table together, by the stroke up and down of restriction pushing block, the i.e. rotational travel of may command upper working table.Design groove on pushing block, adjusting screw(rod) stretches into groove, and the height of groove is a bit larger tham adjusting screw(rod), by designing suitable groove height, the stroke up and down of may command pushing block.
Precession adjusting screw(rod) in middle layer can promote pushing block pushing block and stationary table together, thereby worktable and supporting seat are rotated around minor axis together, realizes clockwise rotating around the Z axle.Screw out and regulate, under the effect of spring, the pushing block counter motion makes worktable rotate counterclockwise around the Z axle.Compare with the three-dimensional working platform of routine, the needs in middle layer drive the upper strata and move together, and each layer all is a bigger table top, and do not adopt this conventional method in the middle layer design herein.The volume of middle layer reality has only supporting seat, is equivalent to 1/10 of whole table top, and set screw and fulcrum ball have supported the worktable on upper strata with supporting seat.This design is converted into rolling friction with sliding friction, has reduced the deadweight that has alleviated three-dimensional working platform around the friction that the Z axle rotates.
Bottom: promote contiguous block and guide rail and link together, guide rail and base link together, and contiguous block, guide rail and base can be considered as a unsplit bedplate.Milscale micrometer head and middle layer link together, and middle layer and guide rail slide link together, and milscale micrometer head, middle layer and guide rail slide can be looked as a whole middle layer.
Precession milscale micrometer head promotes contiguous block, and promptly acting force, oppositely promotes whole middle layer and outwards moves along Y-axis because base is fixed in unsplit bedplate.Screw out the milscale micrometer head, under the effect of spring, oppositely promote slide block, move inward along Y-axis.
Main points of the present invention are:
1, the tested part of placing on the three-dimensional of the screw measurement instrument fine setting worktable needed to adjust the position before measuring.As shown in Figure 1, at first the side head is from left to right measured tested part along X axis, by measuring first, can obtain straight line, this straight line not necessarily is in measures the optimum position, can draw the Y coordinate figure of this straight line by the screw measurement instrument, around the angle of Z axle rotation and the angle of rotating around Y-axis with respect to the optimum position skew.Therefore the three-dimensional of screw measurement instrument fine setting worktable only need design the adjusting of this three degree of freedom.By adjusting three-dimensional fine setting worktable, can make tested part be in the optimum position, measure tested part then.
2, worktable and in the design main points at supporting seat place: worktable is driven vee gutter in the middle of the bottom by the supporting seat place, and on worktable, bearing pin supporting seat hole cooperates by screw retention for front and back open semicircle shape groove, bearing pin.Thus, worktable and bearing pin can rotate around Y-axis in the hole of supporting seat after fixing.The power that rotates around Y-axis comes from hand stirs set screw, and the screw head design of set screw is bigger, is in order to increase the precision of adjusting, to reduce the pitch of set screw threaded portion simultaneously, also can increasing the precision of adjusting.One aperture is arranged at the top of set screw, built-in steel ball, and half of steel ball ball body is in the hole.When the turn set screw, between steel ball and the set screw, the friction force between steel ball and the upper working table is rolling friction, and friction force is very little.
3, the position in upper strata and middle layer relation: upper strata and middle layer are not fixed together fully, and the upper strata can be done around the rotation of Y-axis with around the rotation of Z axle with respect to the middle layer, and other degree of freedom are fixed.Connection between upper strata and the middle layer such as Fig. 2, minor axis is fixed together by the main body middle layer in screw and middle layer, and the body of work platform on upper strata can move along Y-axis around supporting base.Supporting base can rotate around the Z axle, and the body of work platform on upper strata also can follow supporting base to rotate together.Thrust such as Fig. 3 of rotating, screw is fixed together the upper working table on pushing block and upper strata, and adjusting screw(rod) in the middle layer and spring can make pushing block rotate along Y-axis, rotate along Y-axis thereby drive the upper strata.
4, the position of middle layer and bottom relation: middle layer and bottom are not fixed together fully, and the middle layer can seesaw along Y-axis with respect to bottom.As Fig. 2, the main body base through screws of bottom and guide rail and contiguous block are fixed together, and the middle layer main body middle layer is fixed together by screw and guide rail slide, and the milscale micrometer head is fixed together by screw and middle layer.Promote the milscale micrometer head, as Fig. 4, the middle layer moves forward and backward along Y-axis with respect to bottom.
The present invention compares with domestic and international prior art, its creativeness be following some:
1, prior art does not have the three-dimensional fine setting of special screw thread sweep measuring set worktable both at home and abroad; The present invention designs the three-dimensional fine setting worktable of screw thread sweep measuring set special use in the world first.
When 2, function is pivoted in the present invention's design, do not use worm-and-wheel gear, reduced equipment volume, reduced cost.
3, the three-dimensional fine setting of the present invention Working table structure compactness, volume little, from heavy and light.
4, the three-dimensional fine setting of the present invention worktable degree of regulation height.
The present invention is with the difference in functionality that has like product both at home and abroad now:
Prior art is not rotated around Y-axis specially, around the rotation of Z axle with along the moving three-dimensional fine setting worktable of y-axis shift.The three-dimensional regulation of existing worktable for moving along X-axis, Y-axis, Z axle, or the three-dimensional regulation of rotating along X-axis, Y-axis, Z axle.
Worktable of the present invention is specifically designed to the three-dimensional fine adjustment function of screw thread sweep measuring set, and survey line fine setting at the beginning of is datum line, and therefore adjustable degree of freedom be to rotate around Y-axis, rotates and moves along y-axis shift around the Z axle.
X of the present invention is to being the horizontal working direction of screw thread sweep measuring set gauge head; Y is to being the horizontal sideslip direction of gauge head; Z is to being the column direction.Worktable realizes that three-dimensional motion: Y is to the amount of moving horizontally y, around the rotational angle γ of Z axle, around the rotational angle α of Y-axis.Design parameter:
Y=0-10 mm, precision 0.05mm.
γ=0-10 °, rotating accuracy=0.1 °
α=0-10 °, rotating accuracy=0.1 °.
Advantage of the present invention is:
1, the three-dimensional working platform of screw thread sweep measuring set adopts the threaded adjusting anglec of rotation, and makes adjusting place away from rotation center in design, improves degree of regulation.
2, worktable is supported by supporting seat and steel ball, and steel ball can make worktable reduce friction when the Z axle rotates.
3, three-dimensional fine setting worktable top design has dovetail groove, makes things convenient for special vice to install and remove fast.
Description of drawings
Fig. 1 is the three-dimensional fine setting of screw thread sweep measuring set of the present invention worktable structural map.
Fig. 4 is a working state figure of the present invention.
Fig. 2 analyses and observe for the front view of the three-dimensional fine setting of screw thread sweep measuring set worktable, the centre of slice location before and after parts, the internal structure that mainly shows upper working table, middle layer, understructure.
Fig. 3 mainly shows adjusting screw(rod) 21 and spring 19 actings in conjunction in pushing block 20 for A-A of Fig. 2 analyses and observe, and upper working table 8 is rotated around the Z axle.
Fig. 4 mainly shows milscale micrometer head 22 and spring 19 actings in conjunction in contiguous block 15 for the B-B of Fig. 2 analyses and observe, and the middle layer is moved forward and backward along Y-axis.
Among the figure: 1 is the screw measurement instrument; 2 is tested part; 3 is three-dimensional fine setting worktable; 4 is packing ring; 5 is minor axis; 6 is supporting base; 7 is bearing pin; 8 is upper working table; 9 is fulcrum ball; 10 is set screw; 11 is the middle layer; 12 is base; 13 is screw; 14 is the guide rail slide; 15 is contiguous block; 16 is guide rail; 17 is the iron chains bar; 18 is the pressure set screw; 19 is spring; 20 is pushing block; 21 is adjusting screw(rod); 22 is the milscale micrometer head.
Embodiment
The present invention will be further described by embodiment below in conjunction with accompanying drawing.
14 centimetres of the three-dimensional fine setting of present embodiment screw measurement instrument worktable overall heights; Long 30 centimetres, wide 24 centimetres, stainless steel is made.Duty as shown in Figure 1,1 is the screw measurement instrument, 2 is tested part; 3 is three-dimensional fine setting worktable.The three-dimensional fine setting worktable of present embodiment screw measurement instrument special use is divided into three layers from top to bottom: rotate around Y-axis on the upper strata, and rotate around Z in the middle layer, and bottom is along the Y-axis rectilinear motion.
30 centimetres, wide 24 centimetres of upper working table 8 length, dovetail groove is left on top, works in coordination with the special vice of clamping tested part 2, and the special vice on the platform can be loaded and unloaded fast.Upper working table 8 is passed through screw retention together with bearing pin 7, rotation set screw 10, and worktable 8 and bearing pin 7 rotate in the hole of supporting seat 6 together, thereby realize the rotation of three-dimensional fine setting worktable around Y-axis.For reducing friction, between set screw 10 and the worktable 8 part fulcrum ball 9 is set.Since also need place other parts on the worktable, excessive for preventing the worktable degree of tilt, need the rotational travel of restriction around Y-axis.Pushing block 20 is fixed together with worktable 8, by the stroke up and down of restriction pushing block 20, gets final product the rotational travel of Control work platform 8.Design groove on pushing block 20, adjusting screw(rod) 21 stretches into groove, and the height of groove is a bit larger tham adjusting screw(rod), by designing suitable groove height, the stroke up and down of may command pushing block 20.
But the middle layer is provided with the adjusting screw(rod) 21 of precession, and adjusting screw(rod) 21 promotes pushing block 20, pushing block 20 is fixed together with worktable 8, thereby worktable 8 and supporting seat 6 are rotated around minor axis 5 together, realizes clockwise rotating around the Z axle.Screw out and regulate, under the effect of spring, the pushing block counter motion makes worktable rotate counterclockwise around the Z axle.Compare with the three-dimensional working platform of routine, the needs of the second layer drive ground floor and move together, and each layer all is a bigger table top, and do not adopt this conventional method in the second layer design herein.The volume of second layer reality has only supporting seat 6, is equivalent to 1/10 of whole table top, and set screw 10 and fulcrum ball 9 have supported the worktable 8 of ground floor with supporting seat 6.This design is converted into rolling friction with sliding friction, has reduced the deadweight that has alleviated three-dimensional working platform around the friction that the Z axle rotates.
Bottom: promote contiguous block 15 and link together with guide rail 16, guide rail 16 links together with base 12, contiguous block 15, guide rail 16 and base 12 can be considered as a unsplit bedplate.Milscale micrometer head 22 links together with middle layer 11, and middle layer 11 links together with guide rail slide 14, and milscale micrometer head 22, middle layer 11 and guide rail slide 14 are a middle layer integral body.
Screw 13 connects guide rail slide 14 and middle layer 11, and iron chains bar 17 on guide rail slide 14, can move guide rail 16 by screw retention along iron chains bar 17.Set screw 18 screws in the threaded hole in middle layer 11, stretches into spring 19 inside, by adjusting the degree of depth that set screw 18 screws, can adjust the decrement of spring 19, thereby adjusts the bounce pressure of spring.
Precession milscale micrometer head 22 promotes contiguous block 15, and promptly acting force, oppositely promotes whole middle layer and outwards moves along Y-axis because base is fixed in unsplit bedplate.Screw out milscale micrometer head 22, under the effect of spring, oppositely promote slide block, move inward along Y-axis.
The foregoing description only is a preference of the present invention, is not used for limiting the present invention, and is all within principle of the present invention, and that is done anyly is equal to alternative, modifications and variations, all within protection scope of the present invention.

Claims (4)

1. the special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set comprises upper working table (8), middle layer (11), base (12), milscale micrometer head (22), and it is characterized in that: upper working table (8) is fixed together with bearing pin (7); Rotation set screw (10), upper working table (8) and bearing pin (7) rotate in the hole of supporting seat (6) together; Middle layer (11) is provided with adjusting screw(rod) (21), pushing block (20), and pushing block and worktable (8) are fixed together; Pushing block (20) is gone up the design groove, and adjusting screw(rod) (21) stretches in the groove; Base (12) is connected with guide rail (16), and guide rail (16) is connected with contiguous block (15); Guide rail slide (14) has been located in the bottom in middle layer (11); One end in middle layer (11) is connected with milscale micrometer head (22).
2. the special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set according to claim 1 is characterized in that: between upper working table (8) and the set screw (10) fulcrum ball (9) is set.
3. the special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set according to claim 1, it is characterized in that: upper working table (8) is provided with dovetail groove, is connected with special vice.
4. the special-purpose three-dimensional fine setting worktable of screw thread sweep measuring set according to claim 1, it is characterized in that: an end of guide rail (16) is connected with iron chains bar (17).
CN201010513430A 2010-10-21 2010-10-21 Three-dimensional fine-adjustment worktable for thread scanning meter Expired - Fee Related CN101979953B (en)

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CN102901637A (en) * 2012-09-25 2013-01-30 宁波信泰机械有限公司 Water cutting test platform for automobile
CN103486944A (en) * 2013-10-09 2014-01-01 河南柴油机重工有限责任公司 Method and device for high-precision shaft key groove depth error measurement
CN104008949A (en) * 2013-02-22 2014-08-27 东华理工大学 Adjustable device used for extractive electrospray ionization source
CN104315952A (en) * 2014-11-12 2015-01-28 淮阴工学院 Form and location tolerance comprehensive measuring device
CN104315952B (en) * 2014-11-12 2017-01-04 淮阴工学院 Form and position tolerance comprehensive measurement device
CN107270052A (en) * 2017-07-03 2017-10-20 苏州华徕光电仪器有限公司 A kind of planar working table of contact interferometer
CN108838694A (en) * 2018-07-13 2018-11-20 沈承熙 It is a kind of for adjusting the device of Physics Work platform precision
CN109058691A (en) * 2018-09-14 2018-12-21 佛山市天目工业测量科技有限公司 A kind of deflection angle fine adjustment stage and application method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102901637A (en) * 2012-09-25 2013-01-30 宁波信泰机械有限公司 Water cutting test platform for automobile
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CN104008949A (en) * 2013-02-22 2014-08-27 东华理工大学 Adjustable device used for extractive electrospray ionization source
CN104008949B (en) * 2013-02-22 2016-03-09 东华理工大学 A kind of tunable arrangement for electron spray extraction ionization source
CN103486944A (en) * 2013-10-09 2014-01-01 河南柴油机重工有限责任公司 Method and device for high-precision shaft key groove depth error measurement
CN104315952A (en) * 2014-11-12 2015-01-28 淮阴工学院 Form and location tolerance comprehensive measuring device
CN104315952B (en) * 2014-11-12 2017-01-04 淮阴工学院 Form and position tolerance comprehensive measurement device
CN107270052A (en) * 2017-07-03 2017-10-20 苏州华徕光电仪器有限公司 A kind of planar working table of contact interferometer
CN108838694A (en) * 2018-07-13 2018-11-20 沈承熙 It is a kind of for adjusting the device of Physics Work platform precision
CN109058691A (en) * 2018-09-14 2018-12-21 佛山市天目工业测量科技有限公司 A kind of deflection angle fine adjustment stage and application method

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