CN112013796A - Motor shaft centre gripping frock, circumference orthotic devices and keyway symmetry examine utensil - Google Patents
Motor shaft centre gripping frock, circumference orthotic devices and keyway symmetry examine utensil Download PDFInfo
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- CN112013796A CN112013796A CN202010920036.7A CN202010920036A CN112013796A CN 112013796 A CN112013796 A CN 112013796A CN 202010920036 A CN202010920036 A CN 202010920036A CN 112013796 A CN112013796 A CN 112013796A
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- positioning block
- centre gripping
- drive arrangement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
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Abstract
The invention discloses a motor shaft clamping tool, a circumferential correcting device and a key groove symmetry degree checking fixture, wherein the clamping tool comprises a lower bearing base; the lower bearing base is provided with a front fixed seat and a rear seat driving device, and the output end of the rear seat driving device is connected with a rear movable seat; the front fixed seat is rotatably connected with a driving thimble, and the rear movable seat is rotatably connected with a driven thimble; the lower bearing base is also provided with two clamping driving devices which are arranged in bilateral symmetry, and the output ends of the clamping driving devices are connected with clamping components. The clamping tool can stably adjust and fix the circumferential position of the shaft to be measured. In the correcting device, whether the two side surfaces of the key groove are perpendicular to the horizontal plane or not can be accurately judged through the matching of the image acquisition assembly and the auxiliary light source seat. According to the motor shaft key groove symmetry degree detection tool, good contact between the positioning block assembly and the key groove can be effectively guaranteed, and an accurate detection result can be obtained.
Description
Technical Field
The invention belongs to the technical field of motor shaft detection, and particularly relates to a motor shaft clamping tool, a circumferential correcting device and a key groove symmetry degree detection tool.
Background
The shaft with the key slot is one of common parts in mechanical products, and is widely applied to various mechanical rotating devices. As a coupling mechanism for transmitting torque, the key slot needs to be matched with the key, and in order to ensure stable matching between the key slot and the key, the symmetry degree detection of the key slot is very important.
At present, a key slot symmetry detection device is shown in fig. 1, and comprises a support platform, a V-shaped block, a positioning block and a measuring rack with an indicatorThe operation is as follows: placing the shaft to be measured in the notch of the V-shaped block, and assembling the positioning block in the key groove of the shaft to be measured; then the circumferential position of the shaft to be measured is adjusted, so that the positioning block is parallel to the supporting platform, and at the moment, the numerical value of the height position of one end part of the positioning block measured by the indicator is a1The value of the height position of the other end of the positioning block is a2(ii) a Rotating the shaft to be measured by 180 degrees and enabling the positioning block to be parallel to the supporting platform, wherein the numerical value of the height position of one end part of the positioning block measured by the indicator is b1The value of the height position of the other end of the positioning block is b2. One end of the positioning block has a half of the difference in the measured distance1＝(a1-b1) /2, half of the difference in the measured distance at the other end of the positioning block2＝(a2-b2) 2, and then the symmetry error formula f is ═ 2 delta2h+d(Δ1-Δ2)]And (d-h) calculating, wherein d is the shaft diameter of the area where the key groove is located, h is the depth of the key groove,1and2the larger of the absolute value is Δ1Absolute smaller is Δ2。
In practical application, the device and the detection method are time-consuming and labor-consuming, and have the following problems: 1. when the height value at the two end parts of the positioning block is tested by the indicating gauge, the shaft is easily shaken accidentally due to the lack of the auxiliary positioning structure, and thus, the detection result is also influenced. 2. During the circumference axis of rotation, mostly through artifical naked eye observation locating piece and supporting platform between the depth of parallelism, so, can seriously influence the precision that detects. 3. After assembling the locating piece to the keyway, the locating piece of monoblock design does not necessarily have good contact with the keyway, so, must influence the testing result.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the motor shaft clamping tool is as follows: the circumferential position of the shaft to be measured can be conveniently adjusted, and the circumferential position of the shaft to be measured can be efficiently fixed; the technical problem to be solved by the motor shaft circumferential correction device is as follows: how to accurately judge and correct the circumferential position of the shaft to be measured so that the two side surfaces of the key groove can be in a state of being vertical to the horizontal plane; the motor shaft key groove symmetry degree gauge provided by the invention aims to solve the technical problems that: how to improve the stability of the contact between the positioning block assembly and the key groove; and the perpendicularity of the positioning block assembly as a distance measurement reference plate is ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
a motor shaft clamping tool comprises a lower bearing base;
bear and install preceding fixing base and back seat drive arrangement on the base down, back seat drive arrangement's output is connected with the back sliding seat, and back seat drive arrangement acts on the back sliding seat for: the rear movable seat can move back and forth relative to the front fixed seat;
the front fixed seat is rotatably connected with a driving thimble, the rear movable seat is rotatably connected with a driven thimble opposite to the driving thimble, and the front fixed seat is also provided with a circumferential correction driving device for driving the driving thimble to rotate;
bear the base down and still install the centre gripping drive arrangement that two bilateral symmetry set up, centre gripping drive arrangement's output is connected with the centre gripping subassembly, and centre gripping drive arrangement acts on the centre gripping subassembly for: the clamping assembly can move left and right relative to the lower bearing base;
the centre gripping subassembly includes the centre gripping base, and the medial extremity of centre gripping base is provided with the little and big centre gripping accommodation hole of inner chamber of a plurality of opening, all is provided with the supporting rod that removes about the centre gripping accommodation hole relatively in each centre gripping accommodation hole, is provided with the anticreep ring on the supporting rod, still is provided with the centre gripping elastic component that the cover was established on the supporting rod in the centre gripping accommodation hole, and the both ends of centre gripping elastic component butt respectively is at the bottom of the hole of anticreep ring and centre gripping accommodation hole for: the clamping rods are located at the limit position of the inner side end of the clamping base, and the free end of each clamping rod is further sleeved with a clamping elastic sleeve.
In the invention, two ends of the shaft to be measured are generally provided with shaft fixing holes, and the driving thimble and the driven thimble can be respectively placed in the shaft fixing holes at the two ends of the shaft to be measured and are in linkage connection with the shaft fixing holes. The end part of the inner side of the clamping base refers to the end part of one clamping base close to the other clamping base. The free end of the clamping bar refers to the end which is not provided with the clamping spring. When the shaft to be measured is clamped, the axial direction of the shaft to be measured is taken as the front-back direction, and the horizontal radial direction of the shaft to be measured is taken as the left-right direction.
When the shaft to be measured needs to be supported, the rear seat driving device is started to drive the rear movable seat to move backwards, the front end of the shaft to be measured is sleeved on the driving ejector pin, and the rear seat driving device is started to reset the position of the rear movable seat until the driven ejector pin is arranged at the rear end of the shaft to be measured. At this time, the driving thimble and the driven thimble are connected with the shaft to be measured in a linkage manner.
When the circumferential position of the shaft to be measured needs to be adjusted, for example, when the symmetry degree of the key groove needs to be detected, the key groove needs to be adjusted to a state that two side surfaces are perpendicular to the horizontal plane. Then the circumferential correction driving device is started to drive the driving thimble to rotate, and further the circumferential position of the shaft to be measured can be adjusted.
When the circumferential position of the shaft to be measured needs to be fixed, the clamping driving devices on the two sides are started to respectively drive the clamping components on the two sides to move until the clamping components are clamped on the two side walls of the shaft to be measured. Specifically, the clamping rods can compress the clamping elastic piece to different degrees according to the outer surface of the shaft to be measured so as to obtain pressing force of the shaft to be measured. Wherein, the mutual wearing and tearing between clamping rod and the axle that awaits measuring can be reduced in the setting of centre gripping elastic sleeve.
Furthermore, the medial extremity of centre gripping base has still extended the locking frame with centre gripping accommodation hole intercommunication, and the locking opening has been seted up to the locking frame, installs locking drive arrangement on the locking frame, and locking drive arrangement's output is connected with and can passes the locking opening and act on the locking cushion of centre gripping elastic sleeve surface.
In the invention, after the clamping driving devices on the two sides drive the clamping assemblies on the two sides to clamp the shaft to be measured for the first time, the inner side ends of the plurality of clamping rods jointly form a curved surface adaptive to the outer surface of the shaft to be measured. At the moment, the locking driving device can be started to drive the locking cushion block to move so as to press the clamping elastic sleeve in the locking frame to form a tight stacking state, so that the state of the curved surface can be locked, and when the shaft to be measured with the same model is clamped, the curved surface state can be commonly used. Therefore, the clamping efficiency can be effectively improved, and the loss of the clamping assembly can be reduced.
In addition, in order to ensure the clamping force of the clamping assembly on the shaft to be measured, the clamping rods are protruded out of the inner side end part of the locking frame under the action of the clamping elastic piece.
A motor shaft circumferential correction device comprises the motor shaft clamping tool as described in any one of the previous items;
an upper bearing frame is also arranged on the lower bearing base;
install the correction support frame on bearing the frame, install correction drive arrangement on the correction support frame, correction drive arrangement's output is connected with the image acquisition subassembly, and correction drive arrangement acts on the image acquisition subassembly for: the image acquisition assembly can move relative to the upper bearing frame;
the image acquisition assembly comprises an image acquisition connecting frame, and an image collector and a coaxial light source matched with the image collector are arranged on the image acquisition connecting frame;
go up and still install fixed mounting frame on bearing the frame, install auxiliary light source drive arrangement on the fixed mounting frame, auxiliary light source drive arrangement's output is connected with the auxiliary light source link, and auxiliary light source drive arrangement acts on the auxiliary light source link for: the auxiliary light source connecting frame can move up and down relatively by the upper bearing frame, an auxiliary light source seat is connected onto the auxiliary light source connecting frame, a plurality of auxiliary light sources which are arranged in an arc shape are arranged on the auxiliary light source seat, and the bottom end of the auxiliary light source seat is provided with an arc surface which is matched with the plurality of auxiliary light sources.
When the method is applied to measuring the symmetry degree of the key groove, the two side surfaces of the key groove are required to be adjusted to be vertical to the horizontal plane (under the premise that the two side surfaces of the key groove are parallel) by taking the horizontal plane as a reference.
When the test device is applied, the shaft to be tested is firstly installed on the driving thimble and the driven thimble. During assembly, an operator can make the key groove be positioned at the top end of the shaft to be measured in a visual inspection mode. At this moment, the keyway is located the below of image acquisition subassembly, starts correction drive arrangement adjustment image acquisition subassembly's position, opens coaxial light source and makes it illuminate the keyway place region, and the key slot bottom region is lighted to the emphasis. Meanwhile, the auxiliary light source driving device is started to drive the auxiliary light source seat to move downwards until the auxiliary light source seat is attached to the outer surface of the shaft to be measured, the auxiliary light source is started, the auxiliary light source can illuminate the outer surface area of the shaft to be measured, and therefore the outer surface of the shaft to be measured and the area in the key groove are further distinguished.
Under an ideal state, namely when two side faces of the key groove are perpendicular to the horizontal plane, the coaxial light source can illuminate the bottom of the key groove, the auxiliary light source can illuminate the outer surface of the shaft to be measured, and a picture acquired by the image acquisition unit only has a thin black line, namely a chamfer outline of the key groove, as shown in fig. 11. If the two side surfaces of the key groove are not perpendicular to the horizontal plane, under the illumination effect of the auxiliary light source and the coaxial light source, a wider black line, namely, a black line of an image of a projection part of the side wall of the key groove, appears in a picture acquired by the image acquisition device, as shown in fig. 12, at this time, the circumferential position of the shaft to be measured needs to be adjusted through the circumferential correction driving device. After the key groove is corrected to a specific position, the circumferential position of the shaft to be measured can be fixed through the clamping driving device and the clamping assembly, and therefore the shaft to be measured can be prevented from rotating accidentally in subsequent work.
A motor shaft keyway symmetry gauge comprises the motor shaft circumferential correction device as described in any one of the above items;
the upper bearing frame is provided with a movable supporting disc which can rotate relative to the upper bearing frame, and the upper bearing frame is also provided with a supporting disc driving device for driving the movable supporting disc to rotate;
install the bottom of activity supporting disk correct the support frame and with correct the location support frame that the support frame dislocation set up, install drive arrangement about the location on the location support frame, drive arrangement's output is connected with the locating block subassembly about the location, and drive arrangement acts on the locating block subassembly about the location for: the positioning block component can move up and down relative to the movable supporting disk;
the positioning block assembly comprises a positioning block connecting seat, a positioning block A and a positioning block B which is arranged in the positioning block connecting seat in the front-back direction and can move left and right relative to the positioning block A are arranged in the positioning block connecting seat, and both the positioning block A and the positioning block B can move left and right relative to the positioning block connecting seat; the bottom end part of the positioning block A and the bottom end part of the positioning block B both comprise a substrate block, the left end part of the substrate block is provided with a left electromagnetic sheet, the right end part of the substrate block is provided with a right electromagnetic sheet, and the middle part of the substrate block is provided with an electromagnetic isolation sheet for isolating the left electromagnetic sheet from the right electromagnetic sheet;
the lower bearing base is also provided with two distance measurement support frames which are respectively positioned at two sides of the front fixing base, and the distance measurement support frames are respectively provided with a distance measurement sensor for measuring the distance between the positioning block A and the positioning block B;
the distance measuring sensors on the two distance measuring support frames are symmetrically arranged relative to the axis of the driving thimble.
When the symmetry degree of the key groove is measured, the horizontal plane is taken as a reference, two side surfaces of the key groove are required to be adjusted to be vertical to the horizontal plane (on the premise that the two side surfaces of the key groove are parallel), and then the positioning block assembly is arranged in the key groove to be used as an auxiliary plate for detection. The distance measuring sensor can be a high-precision laser distance measuring sensor, and the details are not repeated herein. When the positioning assembly is over against the key groove, the axial direction of the shaft to be measured is used as the front-back direction, and the horizontal radial direction of the shaft to be measured is used as the left-right direction. The size of the key groove in the front-back direction is the length of the key groove, and the size of the key groove in the left-right direction is the width of the key groove. The positioning block A and the positioning block B can move left and right relative to the positioning block connecting seat, and can move in the width direction of the key groove.
When the position of the key groove is corrected, the supporting disk driving device is started to drive the movable supporting disk to rotate, so that the image acquisition assembly is located above the key groove, and the circumferential position of the shaft to be measured is corrected according to the position. After the shaft to be measured is corrected, the clamping driving device is started to drive the clamping assembly to fix the circumferential position of the shaft to be measured at the moment. When the positioning block assembly is placed, after the position of the key groove is determined according to the picture collected by the image collector, the supporting plate driving device is started to drive the movable supporting plate to rotate until the positioning block assembly is right opposite to the area where the key groove is located, the positioning upper and lower driving devices are started to move the positioning block assembly downwards until the positioning block assembly enters the key groove, at the moment, the left electromagnetic sheet can be started first, the right electromagnetic sheet is closed, and the shaft to be measured is made of a metal material, so that the shaft to be measured is made of a metal materialAnd when the left end of the positioning block A and the left end of the positioning block B are magnetic, the positioning block A and the positioning block B can be tightly attached to the left side wall of the key groove (in the width direction of the key groove), and can move automatically according to the side wall condition of the key groove due to the split design of the positioning block A and the positioning block B, at the moment, the distance between the positioning block A and the distance between the positioning block B and the distance between the positioning block A and1and b1(ii) a Closing the left electromagnetic sheet and starting the right electromagnetic sheet, enabling the right end parts of the positioning block A and the positioning block B to be tightly attached to the right side wall of the key groove (in the width direction of the key groove) in a magnetic mode, and respectively measuring the distance between the positioning block A and the positioning block B through two distance measuring sensors on the right side to obtain data a2And b2The symmetry degree can be calculated by a manual method or a system method, and is not described in detail herein.
Furthermore, the upper end part of the positioning block connecting seat is provided with a connecting blind hole;
the positioning block assembly further comprises a positioning fixing rod, a buffering strip-shaped opening is formed in the positioning fixing rod and penetrates through two side walls of the positioning fixing rod, a positioning transmission pin penetrates through the buffering strip-shaped opening, and two ends of the positioning transmission pin are connected with the inner walls of two sides of the connecting blind hole respectively;
still be provided with buffering elastic component in the buffering bar opening, the both ends of buffering elastic component butt respectively on buffering bar open-ended top and location drive pin to make: the positioning block connecting seat is located at the limit position far away from the movable supporting plate.
According to the invention, the arrangement of the buffering elastic piece can reduce the mutual abrasion between the positioning block assembly and the key groove.
In order to improve the moving stability of the positioning block A and the positioning block B, a connecting limiting cavity and a positioning limiting cavity communicated with the bottom end of the connecting limiting cavity are further formed in the positioning block connecting seat;
the positioning block A comprises a positioning connecting section A positioned in the connecting limiting cavity and a positioning reference section A connected to the bottom end of the positioning connecting section A and positioned in the positioning limiting cavity, and the positioning reference section A is provided with the substrate block;
the positioning block B comprises a positioning connecting section B and a positioning reference section B, the positioning connecting section B is located in the connecting limiting cavity, the positioning reference section B is connected to the bottom end of the positioning connecting section B and located in the positioning limiting cavity, and the base block is arranged on the positioning reference section B.
In the invention, the front end and the rear end formed by the positioning block connecting section A and the positioning block connecting section B can be matched with the front side wall and the rear side wall of the connecting limiting cavity, so that the positioning block A and the positioning block B can be prevented from shaking when moving.
In order to improve the moving stability of the positioning block A and the positioning block B, the left-right width of the positioning reference section A is smaller than that of the positioning connecting section A; the left-right width of the positioning reference section B is smaller than that of the positioning connecting section B;
the front end and the rear end of the positioning connecting section A and the positioning connecting section B which are jointly formed are respectively provided with a positioning ball which can be matched with the wall of the connecting limiting cavity in a rolling manner.
According to the invention, the positioning balls can reduce the friction between the positioning connecting section A and the positioning connecting section B and the wall of the connecting limiting cavity, and the moving reliability of the positioning block A and the positioning block B is improved.
In order to improve the moving stability of the positioning block A and the positioning block B, a guide rod A penetrating through the positioning connecting section A is further arranged in the connecting limiting cavity in the left-right direction;
and a guide rod B penetrating through the positioning connecting section B is arranged in the connection limiting cavity in the left-right direction.
According to the invention, the guide rod A can avoid the positioning block A from accidentally shaking during movement; the guide rod B can avoid the positioning block B from accidentally shaking during moving.
Furthermore, the left end and the right end of the positioning connecting section A and the positioning connecting section B are connected with the cavity wall of the connecting limiting cavity through positioning elastic pieces.
According to the invention, the positioning elastic piece is arranged, so that the positioning block A and the positioning block B have automatic resetting capability. Therefore, the positioning block assembly can be conveniently and accurately placed into the key groove of the next shaft to be measured.
Furthermore, a positioning air blowing nozzle is also arranged on the fixed mounting frame;
the output of drive arrangement is connected with the location link about the location, installs the location on the location link and rotates drive arrangement, and the location rotates drive arrangement's output and is connected with the locating block subassembly, the location rotates drive arrangement and acts on the locating block subassembly for: the positioning block component can rotate relative to the movable supporting disk.
In the invention, the positioning suction nozzle is communicated with a gas generator. Because be provided with left electromagnetic sheet and right electromagnetic sheet, when locating piece A and locating piece B carry out the electromagnetism and adsorb, very easily adsorb impurity. When the positioning block assembly does not work, the gas generator is started, and meanwhile, the positioning rotation driving device is started to drive the positioning block assembly to rotate at a slow speed, so that the impurities on the surfaces of the positioning block A and the positioning block B can be cleaned by blowing air outwards through the positioning air blowing nozzle.
Furthermore, a plurality of shaft contact pieces arranged in an arc shape are further arranged on the auxiliary light source seat, and the bottom end parts of the shaft contact pieces are hemispherical and protrude downwards to the bottom end face of the auxiliary light source seat.
In the invention, the shaft contact piece is used for contacting with the outer surface of the shaft to be measured, so that the stability of the auxiliary light source seat can be improved. The hemispherical arrangement can reduce the friction force between the auxiliary light source seat and the shaft to be measured, thus ensuring the reliability of circumferential rotation of the shaft to be measured.
Further, the shaft contact part is provided with a contact movable cavity with a small opening and a large inner cavity;
the auxiliary light source seat is provided with a contact fixing rod, and the bottom end of the contact fixing rod is provided with an anti-falling head which is positioned in the contact movable cavity and has a width larger than the opening of the contact movable cavity;
contact activity intracavity still is provided with the contact elastic component, and the both ends of contact elastic component butt respectively at the bottom of the chamber in anticreep head and contact activity chamber to make: the shaft contact is located at an extreme position protruding downward from the auxiliary light source mount.
The locating piece subassembly is putting into the in-process of keyway and the in-process of starting left electromagnetic sheet and right electromagnetic sheet, all can apply the great effort for the keyway. To this end, the invention is designed with a shaft contact that can provide a clamping force. When the auxiliary light source driving device is applied, when the positioning block assembly needs to be placed in, the auxiliary light source driving device is started to drive the auxiliary light source seat to continuously move downwards until the auxiliary light source seat is compressed and contacted with the elastic piece, so that clamping force is provided for the area where the key groove of the shaft to be measured is located, and the stability of the shaft to be measured is further improved.
Furthermore, a correction blowing nozzle is further arranged on the image acquisition connecting frame.
In the invention, the image acquisition connecting frame can be provided with two correction blowing nozzles which can respectively face two side walls of the key groove. When in use, the straightening air blowing nozzle is communicated with an air generator. Before the locating block assembly is placed into the key groove, the gas generator can be started to clean the two side walls of the key groove through the straightening blowing nozzle.
The invention has the following beneficial effects:
1. in the motor shaft clamping tool, the driving ejector pin and the driven ejector pin are arranged, so that the motor shaft clamping tool can be used for supporting a shaft to be detected and is in linkage connection with the shaft to be detected; the circumferential correction driving device can be used for adjusting the circumferential position of the shaft to be measured; through the arrangement of the clamping driving device and the clamping assembly, the circumferential position of the shaft to be measured can be stably fixed.
2. In the motor shaft circumferential correction device, whether the two side surfaces of the key groove are perpendicular to the horizontal plane or not can be accurately judged through the matching of the image acquisition assembly and the auxiliary light source seat, so that the circumferential position of the key groove can be conveniently corrected for the subsequent embedding operation of the positioning block assembly.
3. In the motor shaft key groove symmetry degree gauge, the split design of the positioning block A and the positioning block B is adopted, and independent distance measurement operation can be performed on the front end part and the rear end part (axial direction of a shaft to be measured) of the key groove. Through the design of left electromagnetic sheet and right electromagnetic sheet, can make locating piece A and locating piece B can be attached at the both sides face of keyway, so, the homoenergetic effectively guarantees the good contact between locating piece subassembly and the keyway.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a conventional detection apparatus;
fig. 2 is a schematic structural diagram of an embodiment of a motor shaft clamping tool according to the present invention;
fig. 3 is a schematic structural diagram of a specific embodiment of a motor shaft clamping tool according to the present invention;
fig. 4 is a schematic structural view of a specific embodiment of a clamping driving device in a motor shaft clamping tool according to the present invention;
fig. 5 is a schematic structural view of a specific embodiment of a clamping assembly in the clamping tool for the motor shaft according to the present invention;
fig. 6 is a schematic structural view of a specific embodiment of a clamping assembly in the clamping tool for the motor shaft according to the present invention;
fig. 7 is a schematic structural view of a specific embodiment of a rear seat driving device in a motor shaft clamping tool according to the present invention;
FIG. 8 is a schematic structural view of an embodiment of a motor shaft circumferential straightening device according to the present invention;
FIG. 9 is a schematic structural diagram illustrating an embodiment of an image capturing assembly in a motor shaft circumferential correction apparatus according to the present invention;
FIG. 10 is a schematic structural view of an embodiment of an auxiliary light source seat in the motor shaft circumferential correction device according to the present invention;
FIG. 11 is a schematic view of image acquisition when two side surfaces of the inner wall of the key slot are perpendicular to the horizontal plane;
FIG. 12 is a schematic view of image acquisition when two side surfaces of the inner wall of the key slot are not perpendicular to the horizontal plane;
FIG. 13 is a schematic structural view of a specific embodiment of a movable support disk in the motor shaft keyway symmetry inspection tool according to the present invention;
FIG. 14 is a schematic structural view of a specific embodiment of a movable support disk in the motor shaft keyway symmetry inspection tool according to the present invention;
FIG. 15 is a schematic structural view of a specific embodiment of a locating block assembly in the motor shaft keyway symmetry inspection tool according to the present invention;
FIG. 16 is a schematic structural view of a specific embodiment of a locating block assembly in the motor shaft keyway symmetry inspection tool according to the present invention;
FIG. 17 is a schematic structural view of a specific embodiment of a locating block assembly in the motor shaft keyway symmetry inspection tool according to the present invention;
FIG. 18 is a schematic structural view of a specific embodiment of a locating block assembly in the motor shaft keyway symmetry inspection tool according to the present invention;
fig. 19 is a schematic structural view of a positioning block a and a positioning block B in the motor shaft keyway symmetry inspection tool according to a specific embodiment of the invention.
Reference numbers and corresponding part names in the drawings: 1. the device comprises a lower bearing base, a front fixed base, a rear movable base, a driving thimble, a driven thimble, a clamping base, a clamping accommodating hole, a clamping rod, a clamping ring, a clamping elastic piece, a clamping elastic sleeve, a clamping frame, a locking driving device, a locking cushion block, a clamping rod, a clamping ring, a clamping elastic piece, a clamping elastic sleeve, a clamping frame, a clamping base, a clamping driving device, a clamping support, a clamping driving device, a clamping device, distance measuring support frame, 35, distance measuring sensor, 36, connecting limit cavity, 37, positioning limit cavity, 38, positioning connection section A, 39, positioning reference section A, 40, positioning connection section B, 41, positioning reference section B, 42, locking through hole, 43, guide rod A, 44, guide rod B, 45, positioning blowing nozzle, 46, positioning connection frame, 47, positioning rotation driving device, 48, shaft contact part, 49, contact movable cavity, 50, contact fixing rod, 51, contact elastic part, 52, correction blowing nozzle, 53, circumferential correction motor, 54, positioning block A, 55, positioning block B, 56, rear seat driving support frame, 57, rear seat driving motor, 58, rear seat driving screw rod, 59, rear seat driving nut, 60, movable seat sliding rail, 61, movable seat sliding block, 62, support disc, 63, bearing top support frame, 64, bearing connection frame, 65, bearing bottom support frame, 66. supporting disk driving motor, 67, supporting disk driving gear, 68, supporting disk driven gear, 69, supporting disk arc opening, 70, supporting disk spacing post, 71, location ball, 72, location elastic component, 73, connect the blind hole, 74, the location dead lever, 75, buffering bar opening, 76, location driving pin, 77, buffering elastic component, 78, image acquisition link, 79, spacing arch, 80, supporting platform, 81, V-arrangement piece, 82, the locating piece, 83, measuring rack, 84, the axle that awaits measuring, 85, the keyway, 86, keyway chamfer profile, 87, keyway lateral wall projection formation of image, 88, axle contact part impetus, 89, thimble bearing, 90, axle fixed orifices, 91, back seat connecting plate, 92, anticreep head, 93, centre gripping drive arrangement, 94, centre gripping support frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 2 to 7, a motor shaft clamping tool includes a lower bearing base 1;
bear and install preceding fixing base 2 and back seat drive arrangement on the base 1 down, back seat drive arrangement's output is connected with back sliding seat 3, and back seat drive arrangement acts on back sliding seat 3 for: the rear movable seat 3 can move back and forth relative to the front fixed seat 2;
a driving thimble 4 is rotatably connected to the front fixed seat 2, a driven thimble 5 opposite to the driving thimble 4 is rotatably connected to the rear movable seat 3, and a circumferential correction driving device for driving the driving thimble 4 to rotate is further mounted on the front fixed seat 2;
bear base 1 down and still install the centre gripping drive arrangement that two bilateral symmetry set up, centre gripping drive arrangement's output is connected with the centre gripping subassembly, and centre gripping drive arrangement acts on the centre gripping subassembly for: the clamping assembly can move left and right relative to the lower bearing base 1;
the centre gripping subassembly includes centre gripping base 6, the medial extremity of centre gripping base 6 is provided with the little and big centre gripping accommodation hole 7 of inner chamber of a plurality of opening, all be provided with the supporting rod 8 that removes about centre gripping accommodation hole 7 relatively in each centre gripping accommodation hole 7, be provided with anticreep ring 9 on the supporting rod 8, still be provided with the centre gripping elastic component 10 of cover on supporting rod 8 in the centre gripping accommodation hole 7, the both ends of centre gripping elastic component 10 butt respectively at the bottom of the hole of anticreep ring 9 and centre gripping accommodation hole 7, make: the clamping rods 8 are located at the extreme positions of the inner side ends of the clamping bases 6, and the free end portion of each clamping rod 8 is further sleeved with a clamping elastic sleeve 11.
In this embodiment, the lower supporting base 1 is provided with a clamping support 94 for supporting the clamping driving device 93. The driving thimble 4 and the driven thimble 5 can be set to be conical. In order to improve the stability of the linkage connection between the driving thimble 4 and the driven thimble 5 and the shaft to be measured, thimble elastic rings 15 can be embedded on the outer surfaces of the driving thimble 4 and the driven thimble 5. The driving thimble 4 and the driven thimble 5 can be respectively connected to the front fixed seat 2 and the rear movable seat 3 through thimble bearings 89 in a rotating manner.
The plurality of clamping rods 8 can be arranged on the clamping base 6 in a matrix or in a staggered manner.
The thimble elastic ring 15 and the clamping elastic sleeve 11 can be made of silica gel or rubber.
The circumferential correction driving device can comprise a circumferential correction motor 53, and the output end of the circumferential correction motor 53 is connected with the tail end of the driving thimble 4 through a circumferential correction connecting piece.
The rear seat driving device can comprise a rear seat driving support frame 56, a rear seat driving motor 57 is installed on the rear seat driving support frame 56, the output end of the rear seat driving motor 57 is connected with a rear seat driving lead screw 58, a rear seat driving nut 59 is matched on the rear seat driving lead screw 58, and the rear seat driving nut 59 is connected with the bottom end of the rear sliding seat 3 through a rear seat connecting plate 91.
In order to improve the moving stability of the rear sliding seat 3, two sliding seat sliding rails 60 respectively located at two sides of the rear seat driving lead screw 58 may be further disposed on the rear seat driving support frame 56, and a sliding seat sliding block 61 matched with the sliding seat sliding rails 60 is disposed at the bottom end of the rear seat connecting plate 91.
Preferably, the lower bearing base 1 is further provided with a front seat driving device, an output end of the front seat driving device is connected with the front fixing base 2, the front seat driving device can adopt the same technical scheme as the rear seat driving device, and thus, the position of the front fixing base 2 can also be adjusted.
Preferably, the inner side end of the clamping base 6 further extends to form a locking frame 12 communicated with the clamping accommodating hole 7, the locking frame 12 is provided with a locking through hole 42, a locking driving device 13 is mounted on the locking frame 12, and the output end of the locking driving device 13 is connected with a locking cushion block 14 capable of penetrating through the locking through hole 42 and acting on the outer surface of the clamping elastic sleeve 11.
In this embodiment, the locking pad 14 may be made of silicone or rubber. The locking drive 13 can be mounted on the locking frame 12 or on the clamping base 6. When the locking driving device 13 drives the locking cushion block 14 to act on the clamping elastic sleeve 11, a plurality of clamping elastic sleeves 11 can be tightly stacked in the locking frame 12. The locking driving device 13 can be a small air cylinder.
Example 2
As shown in fig. 2 to 12, a motor shaft circumferential straightening device includes a motor shaft clamping tool according to any one of embodiment 1;
the lower bearing base 1 is also provided with an upper bearing frame 16;
install on the upper carriage frame 16 and correct support frame 17, correct and install on the support frame 17 and correct drive arrangement 18, correct drive arrangement 18's output and be connected with the image acquisition subassembly, correct drive arrangement 18 and act on the image acquisition subassembly for: the image acquisition assembly is movable relative to the upper carriage 16;
the image acquisition assembly comprises an image acquisition connecting frame 78, and an image collector 19 and a coaxial light source 20 matched with the image collector 19 are arranged on the image acquisition connecting frame 78;
go up and still install fixed mounting frame 21 on the carrier frame 16, install auxiliary light source drive arrangement 22 on the fixed mounting frame 21, auxiliary light source drive arrangement 22's output is connected with auxiliary light source link 23, and auxiliary light source drive arrangement 22 acts on auxiliary light source link 23 for: the auxiliary light source connecting frame 23 can move up and down relative to the upper bearing frame 16, the auxiliary light source connecting frame 23 is connected with an auxiliary light source seat 24, a plurality of auxiliary light sources 25 which are arranged in an arc shape are arranged on the auxiliary light source seat 24, and the bottom end surface of the auxiliary light source seat 24 is in an arc surface arrangement which is matched with the plurality of auxiliary light sources 25.
In this embodiment, the image collector 19 may be a camera, and the camera may be aca2500-14 gm; the coaxial light source 20 can be HL-CL-25 (white light), the auxiliary light source 25 can be LED lamp beads of the white light, and the irradiation surface of the auxiliary light source seat 24 can be provided with a diffusion plate to soften light.
Preferably, the correction driving device 18 may include a cylinder for driving the image capturing assembly to move up and down, and may further include a motor for driving the image capturing assembly to rotate. The auxiliary light source driving device 22 may be an air cylinder.
Example 3
As shown in fig. 2 to 19, a motor shaft keyway symmetry gauge includes a motor shaft circumferential correction device according to any one of embodiment 2;
the upper bearing frame 16 is provided with a movable supporting disc 26 which can rotate relative to the upper bearing frame 16, and the upper bearing frame 16 is also provided with a supporting disc driving device for driving the movable supporting disc 26 to rotate;
install the bottom of activity supporting disk 26 correct support frame 17 and with the location support frame 27 of correcting support frame 17 dislocation set, install drive arrangement 28 about the location on the location support frame 27, drive arrangement 28's output is connected with the locating block subassembly about the location, and drive arrangement 28 acts on the locating block subassembly about the location for: the positioning block assembly can move up and down relative to the movable support plate 26;
the positioning block assembly comprises a positioning block connecting seat 29, a positioning block A and a positioning block B which is arranged in the positioning block connecting seat 29 in the front-back direction and can move left and right relative to the positioning block A are arranged in the positioning block connecting seat 29, and both the positioning block A and the positioning block B can move left and right relative to the positioning block connecting seat 29; the bottom end part of the positioning block A and the bottom end part of the positioning block B both comprise a base block 30, the left end part of the base block 30 is provided with a left electromagnetic sheet 31, the right end part of the base block 30 is provided with a right electromagnetic sheet 32, and the middle part of the base block 30 is provided with an electromagnetic isolation sheet 33 for isolating the left electromagnetic sheet 31 from the right electromagnetic sheet 32;
the lower bearing base 1 is also provided with two distance measuring support frames 34 which are respectively positioned at two sides of the front fixing base 2, and the distance measuring support frames 34 are respectively provided with a distance measuring sensor 35 for measuring the distance between the positioning block A and the positioning block B; the distance measuring sensors 35 on the two distance measuring support frames 34 are symmetrically arranged relative to the axial lead of the driving thimble 4.
In this embodiment, the supporting plate through opening 62 is opened in the middle of the movable supporting plate 26, the upper bearing frame 16 has a bearing top supporting frame 63, the middle of the bearing top supporting frame 63 has a bearing connecting frame 64 penetrating through the movable supporting plate through opening 62, and the bottom end of the bearing connecting frame 64 is connected with a bearing bottom supporting frame 65 supporting the movable supporting plate 26. The fixed mounting 21 may be mounted on a load-bearing bottom support 65. The supporting disk driving device comprises a supporting disk driving motor 66 arranged on the bearing top supporting frame 63, the output end of the supporting disk driving motor 66 is connected with a supporting disk driving gear 67, and a supporting disk driven gear 68 which can be meshed with the supporting disk driving gear 67 is arranged on the outer annular surface of the movable supporting disk 26. The support disk driven gear 68 may be disposed around the outer circumferential surface of the movable support disk 26, or may be disposed only in a segment of an arc-shaped area.
In order to avoid excessive movement of the movable supporting disk 26, a supporting disk arc opening 69 can be formed in the bearing top supporting frame 63, and a supporting disk limiting column 70 penetrating through the supporting disk arc opening 69 is arranged at the top end of the movable supporting disk 26.
When the key groove and two key grooves are symmetrically arranged at the two end parts of the shaft to be measured, the correcting support frame 17 and the positioning support frame 27 can be respectively arranged at the radial symmetrical positions of the movable support disc 26, namely, the central angles corresponding to the two stations are 180 degrees, correspondingly, two auxiliary light source driving devices 22 symmetrically arranged are arranged on the fixed mounting frame 21, and correspondingly, the output ends of the auxiliary light source driving devices 22 are connected with the auxiliary light source connecting frame 23 and the auxiliary light source seat 24. Accordingly, two sets of ranging cradles 34 are provided. Thus, the two keyways on the shaft to be detected can be detected step by rotating the movable supporting disc 26.
The positioning up-down driving device 28 selects a cylinder.
The electromagnetic isolation sheet 33 is made of an insulating material.
The positioning block connecting seat 29 may be formed in a cylindrical shape or a square shape.
The positioning block A can be in surface-to-surface contact with the positioning block B.
The distance measuring sensor 35 can be GY-530VL53L0X VL53L1X laser distance measuring sensor.
Preferably, the upper end of the positioning block connecting seat 29 is provided with a connecting blind hole 73;
the positioning block assembly further comprises a positioning fixing rod 74, a buffering strip-shaped opening 75 is formed in the positioning fixing rod 74, the buffering strip-shaped opening 75 penetrates through two side walls of the positioning fixing rod 74, a positioning transmission pin 76 penetrates through the buffering strip-shaped opening 75, and two ends of the positioning transmission pin 76 are connected with two side inner walls of the connecting blind hole 73 respectively;
a buffering elastic member 77 is further provided in the buffering strip-shaped opening 75, and both ends of the buffering elastic member 77 are respectively abutted on the top end of the buffering strip-shaped opening 75 and the positioning transmission pin 76, so that: the positioning block connecting seat 29 is located at the extreme position far away from the movable supporting plate 26.
In this embodiment, the buffer elastic member 77 may be a compression spring.
Example 4
This example is further defined on the basis of example 3: a connecting limiting cavity 36 and a positioning limiting cavity 37 communicated with the bottom end of the connecting limiting cavity 36 are formed in the positioning block connecting seat 29; the positioning block A comprises a positioning connecting section A38 positioned in the connecting limit cavity 36 and a positioning reference section A39 connected to the bottom end of the positioning connecting section A38 and positioned in the positioning limit cavity 37, and the base block 30 is arranged on the positioning reference section A39;
the positioning block B comprises a positioning connecting section B40 positioned in the connecting limiting cavity 36 and a positioning reference section B41 connected to the bottom end of the positioning connecting section B40 and positioned in the positioning limiting cavity 37, and the base block 30 is arranged on the positioning reference section B41.
In this embodiment, in order to improve the moving stability of the positioning block a and the positioning block B, the front end and the rear end formed by the positioning connection section a38 and the positioning connection section B40 should be respectively adapted to the front inner wall and the rear inner wall of the connection limiting cavity 36. The connection limiting cavity 36 and the positioning limiting cavity 37 can be set to be square cavities.
Preferably, the left-right width of the positioning reference section a39 is smaller than the left-right width of the positioning connection section a 38;
the left-right width of the positioning reference section B41 is smaller than that of the positioning connection section B40;
the front end and the rear end formed by the positioning connecting section A38 and the positioning connecting section B40 are both provided with positioning balls 71 which can be matched with the cavity wall of the connecting limit cavity 36 in a rolling manner.
Preferably, a guide rod A43 penetrating through the positioning connecting section A38 is arranged in the connecting limit cavity 36 in the left-right direction; a guide rod B44 penetrating through the positioning connecting section B40 is arranged in the connecting limiting cavity 36 in the left-right direction.
In this embodiment, two guide rods a43 may be provided; the guide bar B44 may be provided in two. The positioning connecting section A38 can be provided with a linear bearing sleeved on the guide rod A43, and the positioning connecting section B40 can be provided with a linear bearing sleeved on the guide rod B44.
Preferably, the left and right ends of the positioning connecting section a38 and the positioning connecting section B40 are connected with the cavity wall of the connection limiting cavity 36 through positioning elastic pieces 72.
In this embodiment, two positioning elastic pieces 72 are disposed at the left and right ends of the positioning connecting section a38, and two positioning elastic pieces 72 are disposed at the left and right ends of the positioning connecting section B40. For convenience, the positioning elastic member 72 may be a compression spring. The positioning elastic member 72 may be fitted over the guide bar a43 or the guide bar B44.
Example 5
This example is further defined on the basis of example 3: a positioning blowing nozzle 45 is also arranged on the fixed mounting frame 21;
the output of drive arrangement 28 is connected with location link 46 about the location, installs location rotation drive arrangement 47 on the location link 46, and location rotation drive arrangement 47's output is connected with the locating block subassembly, location rotation drive arrangement 47 act on the locating block subassembly for: the positioning block assembly can rotate relative to the movable support plate 26.
In this embodiment, two positioning blowing nozzles 45 may be provided. The positioning rotation driving device 47 may be a reduction motor. The leveling drive 18 can be set with reference to the positioning up-down drive 28 and the positioning rotation drive 47.
Example 6
This example is further defined on the basis of example 3 as follows: the auxiliary light source seat 24 is further provided with a plurality of arc-shaped shaft contact pieces 48, and bottom end portions of the shaft contact pieces 48 are hemispherical and protrude downwards to the bottom end face of the auxiliary light source seat 24.
Preferably, the shaft contact 48 has a contact moving chamber 49 with a small opening and a large inner chamber;
the auxiliary light source seat 24 is provided with a contact fixing rod 50, and the bottom end of the contact fixing rod 50 is provided with an anti-falling head 92 which is positioned in the contact movable cavity 49 and has a width larger than the opening of the contact movable cavity 49;
a contact elastic piece 51 is also arranged in the contact movable cavity 49, and two ends of the contact elastic piece 51 respectively abut against the anti-drop head 92 and the bottom of the contact movable cavity 49, so that: the shaft contact 48 is located at an extreme position protruding downward from the auxiliary light source mount 24.
In this embodiment, the contact elastic member 51 may be a compression spring. The light source connection frame 23 should have a reinforcing rib at a portion corresponding to the portion where the shaft contact member 48 is disposed, so as to improve the stability of the auxiliary light source housing 24 to clamp the shaft to be measured. The contact fixing lever 50 is provided with a stopper protrusion 79 for preventing the shaft contact 48 from excessively moving.
Example 7
This example is further defined on the basis of example 3 as follows: the image acquisition connecting frame 78 is also provided with a correction blowing nozzle 52. The number of the straightening air blowing nozzles 52 can be two, and when the image acquisition assembly is opposite to the key slot, the two straightening air blowing nozzles 52 can be respectively opposite to two side faces of the key slot.
The above is only a preferred embodiment of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.
Claims (10)
1. The utility model provides a motor shaft centre gripping frock which characterized in that: comprises a lower bearing base (1);
bear and install preceding fixing base (2) and back seat drive arrangement on base (1) down, back seat drive arrangement's output is connected with back sliding seat (3), and back seat drive arrangement acts on back sliding seat (3) for: the rear movable seat (3) can move back and forth relative to the front fixed seat (2);
the front fixed seat (2) is rotatably connected with a driving thimble (4), the rear movable seat (3) is rotatably connected with a driven thimble (5) which is opposite to the driving thimble (4), and the front fixed seat (2) is also provided with a circumferential correction driving device for driving the driving thimble (4) to rotate;
bear base (1) down and still install the centre gripping drive arrangement that two bilateral symmetry set up, centre gripping drive arrangement's output is connected with the centre gripping subassembly, and centre gripping drive arrangement acts on the centre gripping subassembly for: the clamping component can move left and right relative to the lower bearing base (1);
the centre gripping subassembly includes centre gripping base (6), the medial extremity of centre gripping base (6) is provided with centre gripping accommodation hole (7) that a plurality of opening is little and the inner chamber is big, all be provided with clamping rod (8) that remove about centre gripping accommodation hole (7) relatively in each centre gripping accommodation hole (7), be provided with slip-ring (9) on clamping rod (8), still be provided with centre gripping elastic component (10) of establishing on clamping rod (8) in centre gripping accommodation hole (7), the both ends of centre gripping elastic component (10) butt respectively at the hole bottom of slip-ring (9) and centre gripping accommodation hole (7), make: the clamping rods (8) are located at the limit positions of the inner side ends of the clamping bases (6), and the free end portion of each clamping rod (8) is further sleeved with a clamping elastic sleeve (11).
2. The motor shaft clamping tool of claim 1, characterized in that: the inside end of centre gripping base (6) still extends to have and locks frame (12) with centre gripping accommodation hole (7) intercommunication, and locking opening (42) have been seted up in locking frame (12), installs locking drive arrangement (13) on locking frame (12), and the output of locking drive arrangement (13) is connected with and can passes locking opening (42) and act on locking cushion (14) of centre gripping elastic sleeve (11) surface.
3. The utility model provides a motor shaft circumference orthotic devices which characterized in that: the motor shaft clamping tool comprises the motor shaft clamping tool as claimed in any one of claims 1-2;
an upper bearing frame (16) is also arranged on the lower bearing base (1);
install on last bearing frame (16) and correct support frame (17), correct and install on support frame (17) and correct drive arrangement (18), the output of correcting drive arrangement (18) is connected with the image acquisition subassembly, corrects drive arrangement (18) and acts on the image acquisition subassembly for: the image acquisition assembly can move relative to the upper bearing frame (16);
the image acquisition assembly comprises an image acquisition connecting frame (78), and an image collector (19) and a coaxial light source (20) matched with the image collector (19) are arranged on the image acquisition connecting frame (78);
go up and still install fixed mounting frame (21) on bearing frame (16), install auxiliary light source drive arrangement (22) on fixed mounting frame (21), the output of auxiliary light source drive arrangement (22) is connected with auxiliary light source link (23), and auxiliary light source drive arrangement (22) act on auxiliary light source link (23) for: the auxiliary light source connecting frame (23) can move up and down relative to the upper bearing frame (16), an auxiliary light source seat (24) is connected onto the auxiliary light source connecting frame (23), a plurality of auxiliary light sources (25) which are arranged in an arc shape are arranged on the auxiliary light source seat (24), and the bottom end of the auxiliary light source seat (24) is in an arc surface arrangement which is matched with the plurality of auxiliary light sources (25).
4. The utility model provides an utensil is examined to motor shaft keyway symmetry which characterized in that: comprising a motor shaft circumferential correction device as recited in claim 3;
the upper bearing frame (16) is provided with a movable supporting plate (26) which can rotate relative to the upper bearing frame (16), and the upper bearing frame (16) is also provided with a supporting plate driving device for driving the movable supporting plate (26) to rotate;
install the bottom of activity supporting disk (26) correct support frame (17) and with the location support frame (27) of correcting support frame (17) dislocation set, install drive arrangement (28) about the location on location support frame (27), the output of drive arrangement (28) is connected with the locating block subassembly about the location, drive arrangement (28) act on the locating block subassembly about the location for: the positioning block component can move up and down relative to the movable supporting plate (26);
the positioning block assembly comprises a positioning block connecting seat (29), a positioning block A and a positioning block B which is arranged in the positioning block connecting seat (29) in the front-back direction and can move left and right relative to the positioning block A are arranged in the positioning block connecting seat, and both the positioning block A and the positioning block B can move left and right relative to the positioning block connecting seat (29); the bottom end part of the positioning block A and the bottom end part of the positioning block B both comprise a substrate block (30), the left end part of the substrate block (30) is provided with a left electromagnetic sheet (31), the right end part of the substrate block (30) is provided with a right electromagnetic sheet (32), and the middle part of the substrate block (30) is provided with an electromagnetic isolation sheet (33) for isolating the left electromagnetic sheet (31) and the right electromagnetic sheet (32);
the lower bearing base (1) is also provided with two distance measuring support frames (34) which are respectively positioned at two sides of the front fixing base (2), and the distance measuring support frames (34) are respectively provided with a distance measuring sensor (35) for measuring the distance between the positioning block A and the positioning block B;
the distance measuring sensors (35) on the two distance measuring support frames (34) are symmetrically arranged relative to the axis of the driving thimble (4).
5. The motor shaft keyway symmetry degree testing fixture of claim 4, characterized in that: a connecting limiting cavity (36) and a positioning limiting cavity (37) communicated with the bottom end of the connecting limiting cavity (36) are formed in the positioning block connecting seat (29);
the positioning block A comprises a positioning connecting section A (38) positioned in the connecting limiting cavity (36) and a positioning reference section A (39) connected to the bottom end of the positioning connecting section A (38) and positioned in the positioning limiting cavity (37), and the base block (30) is arranged on the positioning reference section A (39);
the positioning block B comprises a positioning connecting section B (40) located in the connecting limiting cavity (36) and a positioning reference section B (41) connected to the bottom end of the positioning connecting section B (40) and located in the positioning limiting cavity (37), and the base block (30) is arranged on the positioning reference section B (41).
6. The motor shaft keyway symmetry degree testing fixture of claim 5, characterized in that: a guide rod A (43) penetrating through the positioning connecting section A (38) is arranged in the connecting limiting cavity (36) in the left-right direction;
and a guide rod B (44) penetrating through the positioning connecting section B (40) is arranged in the connecting limiting cavity (36) in the left-right direction.
7. The motor shaft keyway symmetry degree testing fixture of claim 4, characterized in that: a positioning blowing nozzle (45) is also arranged on the fixed mounting rack (21);
the output of drive arrangement (28) is connected with location link (46) about the location, installs location rotation drive arrangement (47) on location link (46), and the output of location rotation drive arrangement (47) is connected with the locating block subassembly, location rotation drive arrangement (47) act on the locating block subassembly for: the positioning block component can rotate relative to the movable supporting disc (26).
8. The motor shaft keyway symmetry degree testing fixture of claim 4, characterized in that: the auxiliary light source seat (24) is also provided with a plurality of arc-shaped shaft contact pieces (48), and the bottom end parts of the shaft contact pieces (48) are hemispherical and protrude downwards to the bottom end surface of the auxiliary light source seat (24).
9. The motor shaft keyway symmetry inspection device of claim 8, characterized in that: the shaft contact piece (48) is provided with a contact movable cavity (49) with a small opening and a large inner cavity;
a contact fixing rod (50) is arranged on the auxiliary light source seat (24), and the bottom end of the contact fixing rod (50) is provided with an anti-falling head (92) which is positioned in the contact movable cavity (49) and has a width larger than the opening of the contact movable cavity (49);
a contact elastic piece (51) is further arranged in the contact movable cavity (49), two ends of the contact elastic piece (51) are respectively abutted against the bottom of the anti-falling head (92) and the bottom of the contact movable cavity (49), and the contact movable cavity comprises the following components: the shaft contact piece (48) is located at an extreme position protruding downward from the auxiliary light source mount (24).
10. The motor shaft keyway symmetry degree testing fixture of claim 4, characterized in that: the image acquisition connecting frame (78) is also provided with a correction blowing nozzle (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920036.7A CN112013796B (en) | 2020-09-02 | 2020-09-02 | Motor shaft centre gripping frock, circumference orthotic devices and keyway symmetry examine utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010920036.7A CN112013796B (en) | 2020-09-02 | 2020-09-02 | Motor shaft centre gripping frock, circumference orthotic devices and keyway symmetry examine utensil |
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| CN112013796A true CN112013796A (en) | 2020-12-01 |
| CN112013796B CN112013796B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010920036.7A Active CN112013796B (en) | 2020-09-02 | 2020-09-02 | Motor shaft centre gripping frock, circumference orthotic devices and keyway symmetry examine utensil |
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| CN (1) | CN112013796B (en) |
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