CN106257230A - Nut detection device and method - Google Patents
Nut detection device and method Download PDFInfo
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- CN106257230A CN106257230A CN201510349099.0A CN201510349099A CN106257230A CN 106257230 A CN106257230 A CN 106257230A CN 201510349099 A CN201510349099 A CN 201510349099A CN 106257230 A CN106257230 A CN 106257230A
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Abstract
A kind of nut detection device and method, the problem the best in order to improve current nut detection precision.The nut detection device of the present invention comprises: a base；One self-clamping module, this self-clamping module has the pedestal being located on this base, and two revolving parts being located on this pedestal and one drive assembly, this driving assembly connects this two revolving parts, to drive these two revolving parts to rotate, a press arm is articulated in this pedestal, and a pinch roller is rotatably attached this press arm, this pinch roller be axially parallel to the axial of these two revolving parts, and the circumferential surface of this pinch roller is relative with the circumferential surface of these two revolving parts；And a degree of eccentricity measurement module, this degree of eccentricity measurement module has the support seat being located on this base, and the measuring element being located on this support seat, and this measuring element has a contact towards this self-clamping module.
Description
Technical field
The present invention is about one detection device and detection method, a kind of nut detection device and method in order to detect nut specification.
Background technology
Refer to Fig. 1, it is a kind of existing screw thread pig gauge 8, may be used to detect the dimension of inner screw thread whether compliant of the nut N of specific standard.This existing screw thread pig gauge 8 comprises a body 81, one end of this body 81 is provided with a lower limit test section 82, the other end of this body 81 is provided with a upper limit test section 83, this lower limit test section 82 and upper limit test section 83 are respectively provided with external screw thread, and the lower limit that effective diameter (pitch diameter) is nut N nominal dimension of this lower limit test section 82, the effective diameter of this upper limit test section 83 is then the higher limit of nut N nominal dimension.
According to aforementioned structure, can detect whether nut N can be screwed into this lower limit test section 82 or this upper limit test section 83.Wherein, it is impossible to be screwed into the nut N of this lower limit test section 82, and the nut N that can be screwed into this upper limit test section 83 is defective products；This lower limit test section 82 can be screwed into and the nut N of this upper limit test section 83 can not be screwed into, it is then the non-defective unit meeting QC standard, that is, the effective diameter of this nut N falls between the upper and lower limit of nominal dimension, this nut N will not produce loosening after can being screwed into the screw meeting this nominal dimension, and combination.
But, this existing screw thread pig gauge 8 can only be by this lower limit test section 82 and this upper limit test section 83, whether the effective diameter of detection nut N female thread is between the upper and lower limit of nominal dimension, and the just size of the effective diameter of nut N female thread cannot be learnt definitely, and, whether the centrage of the female thread of this nut N and the horizontal plane of two ends are formed perpendicular, and when causing this nut N to be combined on object, the biend of this nut N and object cannot form the contiguity of average force.
In order to solve the problems referred to above, refer to Fig. 2, it is that a kind of existing nut degree of eccentricity detects rule 9, double centrage whether compliant and the bias that may be used to detect the female thread of nut N.This existing nut degree of eccentricity detection rule 9 comprise a body 91, one end of this body 91 is provided with a square position 92, this square position 92 has a measurement plane 921, and the center of this measurement plane 921 is convexly equipped with a lower limit test section 93, and the axle center of this lower limit test section 93 is orthogonal with this measurement plane 921.The other end of this body 91 is then provided with a upper limit test section 94, this lower limit test section 93 and upper limit test section 94 are respectively provided with external screw thread, and the lower limit that the effective diameter of this lower limit test section 93 is nut N nominal dimension, the effective diameter of this upper limit test section 94 is the higher limit of nut N nominal dimension.
According to by aforementioned structure, this existing nut degree of eccentricity detection rule 9 are removed can be by this lower limit test section 93 and this upper limit test section 94, whether the effective diameter of detection nut N female thread is between the upper and lower limit of nominal dimension, also nut N can be threaded onto at the measurement plane 921 of this square position 92 neighbouring, and to insert between the measurement plane 921 of this nut N and this square position 92 on a calliper 95 in a laminal insertion section 951, and this calliper 95 is curled up this lower limit test section 93 1 weeks, detect the spacing between end face and the measurement plane 921 of this square position 92 of this nut N the most consistent.If the spacing between this nut N and the measurement plane 921 of this square position 92 keeps consistent, then can determine that the end face of this nut N is parallel to this measurement plane 921, the i.e. female thread axle center of this nut N is also orthogonal with the measurement plane 921 of this square position 92, therefore the female thread axle center of this nut N is without acceptance of persons；Otherwise, then there is eccentric phenomena in the female thread axle center of this nut N.
But, detect during whether the female thread axle center of nut N have eccentric phenomena by this square position 92 and calliper 95, owing to the effective diameter of nut N female thread mostly can be slightly larger than the effective diameter of this lower limit test section 93, the female thread of cause nut N cannot consolidate with this lower limit test section 93 and screw togather, therefore easily cause this nut N when curling up this calliper 95 and produce beat a little, add that the spacing between the end face and the measurement plane 921 of this square position 92 that judge this nut N is the most consistent, the most only feel and vision only according to operator is judged, for the nut N needing high precision, the error of this eccentricity detecting is too big and is difficult to be suitable for, and the female thread axle center degree of eccentricity of nut N cannot be learnt definitely.
Summary of the invention
The present invention provides a kind of nut detection device and method, not only may be used to the effective diameter size of detection nut female thread, moreover it is possible to the female thread axle center degree of eccentricity of detection nut.
The present invention provides a kind of nut detection method, is not only easy to operation, and detection degree of accuracy is high, can be suitably used for having the nut detection that high precision requires.
The nut detection device of the present invention, comprises: a base；One self-clamping module, this self-clamping module has the pedestal being located on this base, and two revolving parts and being located on this pedestal drive assembly, this driving assembly connects this two revolving part, to drive this two revolving part to rotate, a press arm is articulated in this pedestal, and a pinch roller is rotatably attached this press arm, this pinch roller be axially parallel to the axial of this two revolving part, and the circumferential surface of this pinch roller is relative with the circumferential surface of this two revolving part；And a degree of eccentricity measurement module, this degree of eccentricity measurement module has the support seat being located on this base, and is located at the measuring element on this support seat, and this measuring element has the contact towards this self-clamping module.
This nut detection device can additionally comprise an error measurement module, this error measurement module is between this self-clamping module and this degree of eccentricity measurement module, this error measurement module has the support seat being located on this base, and it is located at the measuring element on this support seat, this measuring element has the contact towards this base.
Wherein, the measuring element of this error measurement module can be to adjust highly to be located on this support seat.
Wherein, this base has one and arranges face, and this self-clamping module, this degree of eccentricity measurement module and this error measurement module can assemble directly or indirectly and be positioned this and arrange face.
Wherein, this arranges and can be provided with a translation assembly on face, and the support seat of the pedestal of this self-clamping module or this degree of eccentricity measurement module can assemble and be positioned this translation assembly.
Wherein, this arrange can be provided with on face another translation assembly, the support seat of this error measurement module can assemble be positioned this another translation assembly.
Wherein, this self-clamping module can be provided with one and push assembly, and this pushes assembly and has a positioning block and to rod, and this locating piece is incorporated into this pedestal to be run through to rod for this, rod should be supported and be positioned at the top of this two revolving part, the end face of rod should be supported towards this degree of eccentricity measurement module.Also, should support rod can be a screw rod, this locating piece is provided with a screw and screwed togather for supporting rod.
Wherein, two ends of this press arm are respectively a binding end and a press-side, and this pinch roller is rotatably provided in the binding end of this press arm, are provided with an articulated section between binding end and the press-side of this press arm, and this press arm is by this this pedestal of articulated section pivot joint.
Wherein, this self-clamping module can be provided with a reset element, and this reset element is located in this pedestal, and one end of this reset element is connected to the lower section of this press arm, and this reset element is between the articulated section and press-side of this press arm.
Wherein, this driving assembly can be provided with a rotation dish and two moving parts, and this rotation dish is rotatably attached this pedestal, and wherein a moving part connects one end of this rotation dish and a wherein revolving part, and another moving part connects one end of this rotation dish and another revolving part.
The nut detection method of the present invention, comprise the steps of: prepare a nut detection instrument, this nut detection kit contains a swingle and an external thread part, this swingle has a circumferential surface and two relative end faces, this circumferential surface connects this biend, this external thread part is located at this circumferential surface and is positioned at one end of this swingle, this external thread part has an initiating terminal and a clearing end, this initiating terminal the most without leave of this external thread part is cumulative to this clearing end, this external thread part has that a qualified lower limited diameter is wide and a qualified upper limited diameter width, the lower limit of the nominal dimension of this width of nut to be detected of qualified lower limited diameter, the higher limit of the nominal dimension of this width of nut to be detected of qualified upper limited diameter；One nut to be detected is screwed into clearing end from the initiating terminal of the external thread part of this nut detection instrument, until this nut is threaded onto location, and by this nut towards on the basis of the end face of this clearing end, inspect the final position of this nut whether between be positioned at this external thread part have at this qualified lower limited diameter width with there is this qualified upper limited diameter width between；The swingle that the nut being screwed with this nut detects instrument is inserted into nut detection device described above, the circumferential surface of this pinch roller and this two revolving part jointly press from both sides the circumferential surface of the swingle of this nut detection instrument of pulling；The contact making the measuring element of this degree of eccentricity measurement module is telescopically connected to the end face of this nut；And manipulate this driving assembly with drive this two revolving part, this pinch roller and this nut detection instrument rotate, the measuring element of this degree of eccentricity measurement module detect the telescopic displacement state of its contact, to record the axle center degree of eccentricity of this nut.
Or, when this nut detection device is provided with this error measurement module, after making the contact of measuring element of this degree of eccentricity measurement module telescopically be connected to the end face of this nut, then the contact of the measuring element of this error measurement module is made telescopically to be connected to the circumferential surface that this nut detects the swingle of instrument；Accordingly, the telescopic displacement state of its contact can be detected respectively by the measuring element of this degree of eccentricity measurement module and this error measurement module, again the axle center degree of eccentricity measured by this degree of eccentricity measurement module is deducted the axle center degree of eccentricity measured by this error measurement module, to record the axle center degree of eccentricity of this nut.
Accordingly, the nut detection device and method of the present invention, not only may be used to the effective diameter size of detection nut female thread, moreover it is possible to the axle center degree of eccentricity of detection nut.Furthermore, the nut detection method of the present invention, decrease the factor of artificial error in judgement during being not only easy to operation, and detection, detection degree of accuracy can be promoted, therefore can be suitably used for that there is the nut detection that high precision requires.
Accompanying drawing explanation
Fig. 1: the perspective view of a kind of existing screw thread pig gauge.
The perspective view of Fig. 2: a kind of existing nut degree of eccentricity detection rule.
The perspective view of Fig. 3: first embodiment of the invention.
Enforcement schematic diagram during Fig. 4: first embodiment of the invention nut to be inserted detection instrument.
Fig. 5: the present invention nut detection instrument used partial side when being screwed with a nut of being arranged in pairs or groups cuts open structural representation.
Fig. 6: first embodiment of the invention inserts the side-looking structural representation after nut detection instrument.
The enforcement schematic diagram of Fig. 7: the first embodiment of the invention detection nut degree of eccentricity.
The perspective view of Fig. 8: another embodiment of the present invention.
The perspective view of Fig. 9: second embodiment of the invention.
Figure 10: second embodiment of the invention inserts the side-looking structural representation after nut detection instrument.
The enforcement schematic diagram of Figure 11: the second embodiment of the invention detection nut degree of eccentricity.
[symbol description]
The present invention
1 base
11 arrange face
12 translation assemblies
2 self-clamping modules
21 pedestals
22 revolving parts
23 drive assembly
231 rotation dishes
232 moving parts
24 press arm
24a binding end
24b press-side
241 articulated sections
25 pinch rollers
26 reset elements
27,27 ' assembly is pushed
271 locating pieces
272 support rod
273 keepers
3 degree of eccentricity measurement modules
31 support seat
32 measuring elements
321 contacts
4 nut detection instruments
41 swingles
411 circumferential surfaces
412 end faces
42 external thread parts
421 initiating terminals
422 clearing ends
5 error measurement modules
51 support seat
52 measuring elements
521 contacts
The qualified lower limited diameter width of D1
The qualified upper limited diameter width of D2
N nut
Z1 passes through section completely
The qualified section of Z2
Z3 must not pass through section
θ tapering
Existing
8 screw thread pig gauges
81 bodies
82 lower limit test sections
83 upper limit test sections
9 nut degree of eccentricity detection rule
91 bodies
92 square positions
921 measure plane
93 lower limit test sections
94 upper limit test sections
95 callipers
951 insertion sections
N nut.
Detailed description of the invention
For above-mentioned and other purpose, feature and the advantage of the present invention can be become apparent, presently preferred embodiments of the present invention cited below particularly, and coordinate accompanying drawing, it is described in detail below:
Refer to Fig. 3, it is the first embodiment of nut of the present invention detection device, and this nut detection device generally comprises base 1, self-clamping module 2 and a degree of eccentricity measurement module 3, and this self-clamping module 2 and this degree of eccentricity measurement module 3 are provided at this base 1.
The kenel of this base 1 does not limits, so that the load component such as this self-clamping module 2 and this degree of eccentricity measurement module 3 can be taken advantage of as principle.This base 1 has one and arranges face 11, and this arranges face 11 and is available for this self-clamping module 2 and this degree of eccentricity measurement module 3 assembles location directly or indirectly.Also, can be provided with a translation assembly 12 on the face that arranges 11 of this base 1, this translation assembly 12 can be for example slide rail and the slide block structure that array is stacked, and this translation assembly 12 is available for this self-clamping module 2 or this degree of eccentricity measurement module 3 assembles location；Accordingly, by adjusting this translation assembly 12, thus it is possible to vary this self-clamping module 2 and the spacing of this degree of eccentricity measurement module 3 or relative position, to be suitable for different measurement request.
Refer to the 3rd, 4 figures, this self-clamping module 2 has the pedestal 21 being located on this base 1, and this pedestal 21 can assemble on the face that arranges 11 or the translation assembly 12 that are positioned at this base 1.This self-clamping module 2 additionally comprises two revolving parts 22 and being located on this pedestal 21 and drives assembly 23, and this driving assembly 23 connects this two revolving part 22, to drive this two revolving part 22 to rotate.In the present embodiment, this two revolving part 22 axially in parallel, and this two revolving part 22 is erected on this pedestal 21 at intervals.This driving assembly 23 then comprises rotation dish 231 and two moving parts 232, and this rotation dish 231 is rotatably attached this pedestal 21, and this two moving part 232 can for example, belt or chain；Wherein a moving part 232 connects one end of this rotation dish 231 and a wherein revolving part 22, and another moving part 232 then connects this rotation dish 231 and one end of another revolving part 22.Accordingly, user can rotate by manipulating this rotation dish 231, and then interlocked this two revolving part 22 by this two moving part 232 and produce rotation in the same direction simultaneously.
This self-clamping module 2 also comprises press arm 24 and a pinch roller 25, this press arm 24 is articulated in this pedestal 21, this pinch roller 25 is rotatably attached this press arm 24, this pinch roller 25 be axially parallel to the axial of this two revolving part 22, and the circumferential surface of this pinch roller 25 is relative with the circumferential surface of this two revolving part 22, jointly to be pressed from both sides a nut detection instrument 4 of pulling by this pinch roller 25 and this two revolving part 22, and this nut detection instrument 4 is driven to rotate (the thin portion structure of this nut detection instrument 4 is detailed later).In detail, two ends of this press arm 24 are respectively an a binding end 24a and press-side 24b, this pinch roller 25 is rotatably provided in the binding end 24a of this press arm 24, being additionally provided with an articulated section 241 between the binding end 24a and press-side 24b of this press arm 24, this press arm 24 is by this pedestal 21 of this articulated section 241 pivot joint.
Again, for convenience during lifting operation, the self-clamping module 2 of the present embodiment can be additionally provided with a reset element 26, this reset element 26 is located in this pedestal 21, one end of this reset element 26 is connected to the lower section of this press arm 24, and this reset element 26 is between the articulated section 241 and press-side 24b of this press arm 24.Accordingly, when user presses the press-side 24b of this press arm 24, this press arm 24 produces relative to this pedestal 21 and pivots, and makes the binding end 24a of this press arm 24 relatively tilt (as shown in Figure 4), meanwhile, this reset element 26 can be compressed and be produced elastic deformation；And user is when decontroling this press arm 24, this reset element 26 then can elastic reset, and then push against this press arm 24 and reversely pivot, make two ends of this press arm 24 all automatically return to initial position when not being pressed.
In addition, the self-clamping module 2 of the present embodiment also can be provided with one and push assembly 27, this pushes assembly 27 has a positioning block 271 and and supports rod 272, this locating piece 271 is incorporated into this pedestal 21 to be run through to rod 272 for this, and make this support excellent 272 tops being positioned at this two revolving part 22, it is somebody's turn to do the end face supporting excellent 272 and detects instrument 4 towards this degree of eccentricity measurement module 3, the nut pulling between this two revolving part 22 and this pinch roller 25 to be supported the end face abutting folder of rod 272 by this.In the present embodiment, rod 272 should be supported and may be selected to be a screw rod, and this locating piece 271 is provided with a screw and screwed togather for supporting rod 272, therefore user can should support rod 272 with turn, and making this support rod 272 smoothly can advance relative to this locating piece 271 towards this degree of eccentricity measurement module 3 or retreat.Or, refer to Fig. 8, other embodiments push assembly 27 ', it supports rod 272 and may be selected to be a threadless barred body, the hole of this locating piece 271 is also not provided with screw thread, can be pushed directly on this during use and support rod 272, be penetrated this locating piece 271 to support rod 272 tight against this by positioning piece 273 again after reaching location, make to support excellent 272 and temporarily cannot slide relative to this locating piece 271.
Referring again to Fig. 3,4, this degree of eccentricity measurement module 3 is located on this base 1, this degree of eccentricity measurement module 3 has support seat 31 and a measuring element 32, this support seat 31 can assemble on the face that arranges 11 or the translation assembly 12 that are positioned at this base 1, this measuring element 32 then assembles and is positioned on this support seat 31, this measuring element 32 has a contact 321, and this contact 321 is towards this self-clamping module 2.
Refer to Fig. 3,5, nut of the present invention detection device arranged in pairs or groups use nut detection instrument 4, be to detect in order to each nut N for same specification, this nut detect instrument 4 comprise swingle 41 and an external thread part 42；This external thread part 42 is located at one end of this swingle 41, and this external thread part 42 is available for being screwed into nut N to be detected, and this swingle 41 is then available for this self-clamping module 2 folder and pulls.
In detail, this swingle 41 has circumferential surface 411 and two relative end faces 412 in strip, and this circumferential surface 411 connects this biend 412.This external thread part 42 is located at the circumferential surface 411 of this swingle 41 and is positioned at one end of this swingle 41, and this external thread part 42 has several thread, and the pitch of these several threads is equal, and the depth of threat of these several threads is the most equal.This external thread part 42 has initiating terminal 421 and a clearing end 422, and this initiating terminal 421 the most without leave of this external thread part 42 to this clearing end 422 is cumulative and forms a taper theta.This external thread part 42 has a qualified wide D1 of a lower limited diameter and qualified upper limited diameter width D2, and this qualified lower limited diameter width D1 is the lower limit of nut N nominal dimension, and this qualified upper limited diameter width D2 is then the higher limit of nut N nominal dimension.
In the present embodiment, this external thread part 42 can be divided into one must not pass through section Z3 by section Z1, a qualified section Z2 and completely, the initiating terminal 421 of this external thread part 42 is positioned at this completely by section Z1, the clearing end 422 of this external thread part 42 be positioned at this must not pass through section Z3, this qualified section Z2 this completely by section Z1 and this must not be by between section Z3.This external thread part 42 this qualified section Z2 with this by the intersection of section Z1, there is this qualified lower limited diameter width D1 completely, this external thread part 42 this qualified section Z2 and this must not be had by the intersection of section Z3 this qualified on limited diameter width D2.In other words, if nut N to be detected cannot be passed through section Z1 completely and be screwed into this qualified section Z2 by this, then the internal diameter of this nut N is the least, belongs to defective work；If nut N to be detected is by this qualified section Z2 and is further screwed into this and must not pass through section Z3, then the internal diameter of this nut N is too big, falls within defective work.
According to by aforementioned structure, the present invention can provide a kind of nut detection method, in order to the effective diameter size of detection nut N female thread, and the axle center degree of eccentricity of detection nut N；This nut detection method comprises the steps of:
Refer to Fig. 3,5, nut N to be detected is screwed into clearing end 422 from the initiating terminal 421 of external thread part 42 of nut detection instrument 4, until this nut N is threaded onto location and cannot advance to this clearing end 422 again.By this nut N towards on the basis of the end face of this external thread part 42 clearing end 422, inspect this nut N and be screwed together in the final position of this external thread part 42 and whether be positioned in this qualified section Z2；The most then the effective diameter of this nut N female thread falls within the range of nominal dimension, and can inspect which thread this nut N is finally screwed together in further, and then the effective diameter size of this nut N female thread is learnt in conversion.If it is not, then the effective diameter of this nut N female thread falls within outside the scope of nominal dimension, belong to defective work, should give superseded.
Refer to Fig. 4, in a previous step, if the effective diameter of the female thread of this nut N falls within the range of nominal dimension, then this nut N further can be carried out degree of eccentricity detection.That is, user can press the press arm 24 of this self-clamping module 2, makes the binding end 24a of this press arm 24 relatively tilt, and the swingle 41 that the nut being screwed with this nut N detects instrument 4 is inserted between this pinch roller 25 and this two revolving part 22.
Refer to Fig. 6, continuous this press arm 24 of relieving, this reset element 26 two ends of this press arm 24 are all automatically returned to initial position when not being pressed.Now, the circumferential surface 411 of the swingle 41 of this nut detection instrument 4 can be abutted by the circumferential surface of this pinch roller 25 and this two revolving part 22 is firm simultaneously, and the external thread part 42 of this nut detection instrument 4 does not the most contact this pinch roller 25 and this two revolving part 22.
Refer to Fig. 7, directly can push this nut detection instrument 4 to this degree of eccentricity measurement module 3, till the contact 321 of the measuring element 32 of this degree of eccentricity measurement module 3 is connected to the end face of this nut N with this rod 272 that supports pushing assembly 27.Or, it is possible to adjusted the relative position between this self-clamping module 2 with this degree of eccentricity measurement module 3 by the translation assembly 12 of this base 1, make the contact 321 of the measuring element 32 of this degree of eccentricity measurement module 3 telescopically be connected to the end face of this nut N；And the rod 272 that supports being pushed assembly 27 by this abuts the end face 412 of swingles 41 of these nuts detection instruments 4, it is to avoid this swingle 41 falls back movement.
Continuous, user can rotate by manipulating this rotation dish 231, and then interlocked this two revolving part 22 by this two moving part 232 and produce rotation in the same direction simultaneously, make this pinch roller 25 and this nut detection instrument 4 also synchronous rotary, the telescopic displacement state of its contact 321 is detected, to record the axle center degree of eccentricity of this nut N by this measuring element 32.
In detail, if the axle center of this nut N there is no eccentric phenomena, then the end face of this nut N should remain orthogonal with the axle center of the external thread part 42 of this nut detection instrument 4, therefore during this nut N rotates with this nut detection instrument 4, it is flexible that the end face of this nut N can't cause the contact 321 of this measuring element 32 to produce, i.e. the telescopic displacement amount of this contact 321 should be measured as zero.Relatively, if there is eccentric phenomena in the axle center of this nut N, then the end face of this nut N is not orthogonal to the axle center that this nut detects the external thread part 42 of instrument 4, therefore during this nut N rotates with this nut detection instrument 4, the contact 321 causing this measuring element 32 is produced flexible by the end face of this nut N, and can be directly displayed the axle center degree of eccentricity of this nut N of the gained that converts from the telescopic displacement amount of this contact 321 by this measuring element 32.
Refer to Fig. 9, it is the second embodiment of nut of the present invention detection device, this second embodiment is generally same as above-mentioned first embodiment, and its Main Differences is additionally provided with an error measurement module 5, to promote the precision measuring the nut N axle center degree of eccentricity in the nut detection device of: this second embodiment.
In detail, refer to Fig. 9,10, this error measurement module 5 is located on this base 1, and this error measurement module 5 is between this self-clamping module 2 and this degree of eccentricity measurement module 3.This error measurement module 5 also has support seat 51 and a measuring element 52, this support seat 51 can assemble on the face that arranges 11 or another translation assembly 12 that are positioned at this base 1, this measuring element 52 assembles the most in adjustable height and is positioned on this support seat 51, this measuring element 52 has a contact 521, and this contact 521 is towards this base 1.
Refer to Figure 11, when using the female thread axle center degree of eccentricity of the nut detection device detection nut N with this error measurement module 5, after user can be connected to the end face of nut N making the contact 321 of measuring element 32 of degree of eccentricity measurement module 3, adjust the measuring element 52 of this error measurement module 5 position on this support seat 51 again, make the contact 521 of this measuring element 52 telescopically abut the circumferential surface 411 of swingle 41 of this nut detection instrument 4.Consequently, it is possible to when this two revolving part 22, this pinch roller 25 and this nut detection instrument 4 equal synchronous rotary, 32,52 telescopic displacement states that can record its contact 321,521 respectively of this two measuring element.
Specifically be, if owing to swingle 41 concentricity of this nut detection instrument 4 is the best, the numerical value then recorded from this measuring element 32 can cover the axle center degree of eccentricity of this swingle 41, therefore the present embodiment separately measures for this axle center degree of eccentricity of swingle 41 own, if the numerical value that this measuring element 52 records is not zero, the numerical value that then this measuring element 32 records need to deduct the numerical value that this measuring element 52 records again, it is only the real axle center degree of eccentricity of this nut N, therefore the present embodiment can further promote the precision measuring the nut N axle center degree of eccentricity.
In sum, the nut detection device and method of the present invention, a nut detection instrument of can arranging in pairs or groups uses, and not only may be used to the effective diameter size of detection nut female thread, moreover it is possible to the female thread axle center degree of eccentricity of detection nut.Accordingly, the present invention can reach following advantages:
One, can be during manufacturing a large amount of nuts continuously, stochastic sampling detection at any time, directly to learn whether the running of tooth machining unit comes into question, and the most reached and need to repair opportunity of problem immediately and (such as change in order to whether having worn away to the tapping cutter of nut tapping to need, or the deflection degree of tapping cutter is the most still in admissible scope etc.), help the yield of improving product.
Two, due to the present invention can definitely learn nut by measured value, therefore when tooth machining unit drives the deflection degree during running of tapping cutter cannot adjust to ideal value, then available being somebody's turn to do be calculated by measured value, to select appropriate ones rapidly in smaller size of multiple tapping cutters, thus processed the nut with qualified size by this suitable tapping cutter.
Three, the present invention process of throughput calorimetric or plating etc. can process forward and backward nut, and simply and quickly deflection or the electroplating film thickness of detection heat treatment are the most preferable.
Therefore the present invention is in addition to can carrying out specification inspection to nut finished product, moreover it is possible in the whole processing procedure of nut, the semi-finished product that examination at random particular process step is forward and backward at any time, and datumization testing result, can help quickly to get rid of the problem in processing procedure, practicality is splendid.
Furthermore, the nut detection method of the present invention, decrease the factor of artificial error in judgement during being not only easy to operation, and detection, detection degree of accuracy can be promoted, therefore can be suitably used for that there is the nut detection that high precision requires.
Claims (13)
1. a nut detection device, it is characterised in that it comprises:
One base；
One self-clamping module, this self-clamping module has the pedestal being located on this base, and two revolving parts being located on this pedestal and one drive assembly, this driving assembly connects this two revolving parts, to drive these two revolving parts to rotate, a press arm is articulated in this pedestal, and a pinch roller is rotatably attached this press arm, this pinch roller be axially parallel to the axial of these two revolving parts, and the circumferential surface of this pinch roller is relative with the circumferential surface of these two revolving parts；And
One degree of eccentricity measurement module, this degree of eccentricity measurement module has the support seat being located on this base, and the measuring element being located on this support seat, and this measuring element has a contact towards this self-clamping module.
2. nut detection device as claimed in claim 1, it is characterized in that, additionally comprise an error measurement module, this error measurement module is between this self-clamping module and this degree of eccentricity measurement module, this error measurement module has the support seat being located on this base, and the measuring element being located on this support seat, this measuring element has a contact towards this base.
3. nut detection device as claimed in claim 2, it is characterised in that the measuring element of this error measurement module is to be located in adjustable height on this support seat.
4. nut detection device as claimed in claim 2, it is characterised in that this base has and arranges face, this self-clamping module, this degree of eccentricity measurement module and this error measurement module assemble directly or indirectly and are positioned this and arrange face.
5. nut detection device as claimed in claim 4, it is characterised in that this arranges face and is provided with a translation assembly, and the support seat of the pedestal of this self-clamping module or this degree of eccentricity measurement module assembles and is positioned this translation assembly.
6. nut detection device as claimed in claim 5, it is characterised in that this arranges face and is provided with another translation assembly, the support seat of this error measurement module assembles and is positioned this another translation assembly.
7. the nut detection device as described in arbitrary in claim 1 to 6, it is characterized in that, this self-clamping module has one and pushes assembly, this pushes assembly has a locating piece and one and supports rod, this locating piece is incorporated into this pedestal to be run through to rod for this, rod should be supported and be positioned at the top of these two revolving parts, the end face of rod should be supported towards this degree of eccentricity measurement module.
8. nut detection device as claimed in claim 7, it is characterised in that should support rod is a screw rod, this locating piece is provided with a screw and screwed togather for supporting rod.
9. the nut detection device as described in arbitrary in claim 1 to 6, it is characterized in that, two ends of this press arm are respectively a binding end and a press-side, this pinch roller is rotatably provided in the binding end of this press arm, being provided with an articulated section between binding end and the press-side of this press arm, this press arm is by this this pedestal of articulated section pivot joint.
10. nut detection device as claimed in claim 9, it is characterized in that, this self-clamping module has a reset element, and this reset element is located in this pedestal, one end of this reset element is connected to the lower section of this press arm, and this reset element is between the articulated section and press-side of this press arm.
In 11. such as claim 1 to 6 arbitrary as described in nut detection device, it is characterized in that, this driving assembly has a rotation dish and two moving parts, this rotation dish is rotatably attached this pedestal, one of them moving part connects one end of this rotation dish and one of them revolving part, and another moving part connects one end of this rotation dish and another revolving part.
12. 1 kinds of nut detection methods, it is characterised in that comprise the steps of:
Prepare a nut detection instrument, this nut detection kit contains a swingle and an external thread part, this swingle has a circumferential surface and two relative end faces, this circumferential surface connects this two end faces, this external thread part is located at this circumferential surface and is positioned at one end of this swingle, this external thread part has an initiating terminal and a clearing end, this initiating terminal the most without leave of this external thread part is cumulative to this clearing end, this external thread part has that qualified lower limited diameter is wide and a qualified upper limited diameter width, the lower limit of the nominal dimension of this width of nut to be detected of qualified lower limited diameter, the higher limit of the nominal dimension of this width of nut to be detected of qualified upper limited diameter；
One nut to be detected is screwed into clearing end from the initiating terminal of the external thread part of this nut detection instrument, until this nut is threaded onto location, and by this nut towards on the basis of the end face of this clearing end, inspect the final position of this nut whether between be positioned at this external thread part have at this qualified lower limited diameter width with there is this qualified upper limited diameter width between；
The swingle that the nut being screwed with this nut detects instrument is inserted into nut as claimed in claim 1 detection device, the circumferential surface of this pinch roller and these two revolving parts jointly press from both sides the circumferential surface of the swingle of this nut detection instrument of pulling；
The contact making the measuring element of this degree of eccentricity measurement module is telescopically connected to an end face of this nut；And
Manipulate this driving assembly with drive these two revolving parts, this pinch roller and this nut detection instrument rotate, the measuring element of this degree of eccentricity measurement module detect the telescopic displacement state of its contact, to record the axle center degree of eccentricity of this nut.
13. 1 kinds of nut detection methods, it is characterised in that comprise the steps of:
Prepare a nut detection instrument, this nut detection kit contains a swingle and an external thread part, this swingle has a circumferential surface and two relative end faces, this circumferential surface connects this two end faces, this external thread part is located at this circumferential surface and is positioned at one end of this swingle, this external thread part has an initiating terminal and a clearing end, this initiating terminal the most without leave of this external thread part is cumulative to this clearing end, this external thread part has that qualified lower limited diameter is wide and a qualified upper limited diameter width, the lower limit of the nominal dimension of this width of nut to be detected of qualified lower limited diameter, the higher limit of the nominal dimension of this width of nut to be detected of qualified upper limited diameter；
One nut to be detected is screwed into clearing end from the initiating terminal of the external thread part of this nut detection instrument, until this nut is threaded onto location, and by this nut towards on the basis of the end face of this clearing end, inspect the final position of this nut whether between be positioned at this external thread part have at this qualified lower limited diameter width with there is this qualified upper limited diameter width between；
The swingle that the nut being screwed with this nut detects instrument is inserted into nut as claimed in claim 2 detection device, the circumferential surface of this pinch roller and these two revolving parts jointly press from both sides the circumferential surface of the swingle of this nut detection instrument of pulling；
The contact making the measuring element of this degree of eccentricity measurement module is telescopically connected to an end face of this nut；
The contact making the measuring element of this error measurement module is telescopically connected to the circumferential surface of the swingle of this nut detection instrument；
Manipulate this driving assembly with drive these two revolving parts, this pinch roller and this nut detection instrument rotate, the measuring element of this degree of eccentricity measurement module and this error measurement module detect the telescopic displacement state of its contact respectively；And
The axle center degree of eccentricity measured by this degree of eccentricity measurement module is deducted the axle center degree of eccentricity measured by this error measurement module, to record the axle center degree of eccentricity of this nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349099.0A CN106257230A (en) | 2015-06-23 | 2015-06-23 | Nut detection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510349099.0A CN106257230A (en) | 2015-06-23 | 2015-06-23 | Nut detection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106257230A true CN106257230A (en) | 2016-12-28 |
Family
ID=57713502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510349099.0A Pending CN106257230A (en) | 2015-06-23 | 2015-06-23 | Nut detection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106257230A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107024168A (en) * | 2017-05-27 | 2017-08-08 | 苏州工业职业技术学院 | Concentricity measures cubing |
| CN112621146A (en) * | 2020-12-06 | 2021-04-09 | 徐州丹奕工程科技有限公司 | Nut detection assembly line based on automatic feeding |
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| CN2061271U (en) * | 1990-02-14 | 1990-08-29 | 三星五金工厂股份有限公司 | Thread gauge for measuring inner parallel screw threads of nut |
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| CN112621146A (en) * | 2020-12-06 | 2021-04-09 | 徐州丹奕工程科技有限公司 | Nut detection assembly line based on automatic feeding |
| CN112621146B (en) * | 2020-12-06 | 2023-09-08 | 安徽长江紧固件有限责任公司 | Nut detection assembly line based on automatic feeding |
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