CN113210289A - Automatic detection device for cylindrical automobile parts - Google Patents

Automatic detection device for cylindrical automobile parts Download PDF

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Publication number
CN113210289A
CN113210289A CN202110506636.3A CN202110506636A CN113210289A CN 113210289 A CN113210289 A CN 113210289A CN 202110506636 A CN202110506636 A CN 202110506636A CN 113210289 A CN113210289 A CN 113210289A
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China
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rod
detection
frame
rods
shaped
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CN202110506636.3A
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CN113210289B (en
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陈雪丽
来永杰
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Individual
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36Sorting apparatus characterised by the means used for distribution
    • B07C5/361Processing or control devices therefor, e.g. escort memory
    • B07C5/362Separating or distributor mechanisms

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  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

The invention relates to an automatic detection device for cylindrical automobile parts, which effectively solves the problems that the existing cylindrical parts have low efficiency and the detection result has large difference with the real situation when the straightness accuracy measurement is carried out; the technical scheme comprises the following steps: the device can automatically detect the straightness of the inner circular surface of the cylindrical part on the production line and is carried out under the condition that the production line is not stopped, so that the detection efficiency is greatly improved, and unqualified cylindrical parts can be automatically removed according to the detection result, so that the parts on the production line are qualified products.

Description

Automatic detection device for cylindrical automobile parts
Technical Field
The invention relates to the technical field of part detection, in particular to an automatic detection device for cylindrical automobile parts.
Background
Most of the existing cylindrical parts are cast into blanks firstly and are formed by finish machining such as polishing, and in the machining process, the straightness of the inner circular surface of the cylindrical part is difficult to ensure, namely, parts with unqualified straightness exist more or less, if the outgoing parts are not detected, the abrasion degree of the parts is aggravated when the parts are put into use, and in the operation process, the lower straightness of the inner circular surface causes larger noise, vibration and the like, so that the service life of the parts is shortened, and the parts matched with the parts are damaged;
the existing detection for the straightness of cylindrical parts usually adopts a sampling detection mode to detect, namely, a batch of parts are selected from the parts to be delivered from a factory to detect, but all the parts cannot be detected, so that defective goods are inevitably mixed in the delivered parts to reduce the qualification rate of the delivered parts, and the detection result has certain uncertainty due to different standards and judgment degrees when different personnel carry out detection, and the adoption of the mode for measurement wastes time and labor, and has larger errors to cause inaccurate measurement;
in view of the above, we provide an automatic inspection device for cylindrical automobile parts to solve the above problems.
Disclosure of Invention
In view of the above situation, the present invention provides an automatic detection device for cylindrical automobile parts, which can automatically detect the straightness of the inner circular surface of the cylindrical parts on a production line and perform the detection under the condition that the production line is not stopped, thereby greatly improving the detection efficiency, and also can automatically remove unqualified cylindrical parts according to the detection result, thereby ensuring that the parts on the production line are all qualified products.
An automatic detection device for cylindrical automobile parts comprises a frame body, wherein the frame body is provided with a transmission unit, and the automatic detection device is characterized in that a detection frame is transversely installed on the frame body in a sliding mode, a U-shaped frame is vertically installed on the detection frame in a sliding mode, lifting rods are vertically installed on two cantilevers of the U-shaped frame in a sliding mode, a positioning device matched with the lifting rods is arranged on the U-shaped frame, a rectangular cylinder is vertically installed at the bottom of each lifting rod in a sliding mode, a telescopic spring is connected between each lifting rod and the rectangular cylinder, an unlocking device matched with the positioning device is arranged on each lifting rod, and when the unlocking device touches a part to be detected, the positioning of the positioning device is released;
the detection frame is connected with a reciprocating transmission device arranged on the side wall of the frame body, the reciprocating transmission device is driven by the transmission unit, and the reciprocating transmission device and the transmission unit are matched to meet the requirements: the speed of driving the detection frame to move can be higher than that of the transmission unit, the detection rod is rotatably installed between the two rectangular cylinders, the detection rods are provided with a plurality of detection wheels arranged at intervals in a sliding mode along the radial direction of the detection rods, the detection wheels drive the measuring device arranged on the detection rods, the detection springs are connected between the detection wheels and the detection rods, the measuring device is connected with a blocking mechanism which is arranged on the side wall of one rectangular cylinder and matched with the unlocking device, and the blocking mechanism can enable the blocking mechanism to act and lock the unlocking device when the measuring device detects that the part is unqualified;
the horizontal one side of support body is equipped with and clears away the conveying unit with the conveying unit complex, reciprocating transmission cooperatees with the test rack and satisfies: when the reciprocating transmission device drives the detection frame to move to one end limit position, the detection wheels pass over the part.
Preferably, the horizontal both sides of lifter are integrative to be equipped with the arc pole, positioner includes that longitudinal sliding installs and is connected with positioning spring between locating lever and the U-shaped frame of U-shaped frame cantilever, be equipped with on the lifter with locating lever complex locating hole, unlocking device includes and is connected with unlocking spring between unlocking plate and the arc pole along arc pole radial slidable mounting's unlocking plate and unlocking plate, unlocking rod has longitudinal sliding to install in the lifter and the inconsistent pole that withdraws from of locating lever through withdrawing from the link mechanism drive.
Preferably, a plurality of sliding cavities are arranged on the detection rod at positions close to one of the rectangular cylinders along the radial direction of the rectangular cylinder at intervals in an encircling mode, the detection wheel is installed in the corresponding sliding cavities in a sliding mode, the detection wheel drives the measuring rod which is provided with the stroke amplification device arranged on the sliding cavity and is installed on the side wall of the sliding cavity in a sliding mode, the measuring rod is provided with a conducting strip, the side wall of the sliding cavity is provided with a resistance card matched with the conducting strip in an abutting mode, the conducting strip and the resistance card corresponding to the conducting strip are connected in series in a voltage stabilizing loop together, an ammeter is connected in the voltage stabilizing loop in series, and the ammeter is electrically connected with a data processor.
Preferably, the measuring stick cooperation has along measuring stick length direction slidable mounting's actuating lever and be connected with actuating spring between the measuring stick, and is a plurality of actuating lever other end cooperates jointly to have and sets up with the axle center with the measuring stick and with it slidable mounting's ring, is connected with reset spring between ring and the measuring stick, a ring lateral wall rotates with the axle center and installs barrier ring and barrier ring drive stop mechanism, the ring is connected with the one-way transmission device who locates on the measuring stick and breaks away from with the ring when the check frame removes to initial position.
Preferably, the blocking mechanism comprises a blocking barrel which is rotatably installed on the side wall of the rectangular barrel far away from the sliding cavities, and blocking rods are installed at two ends in the blocking barrel in a sliding mode, one of the blocking rods and the blocking ring are rotatably installed, the other blocking rod is rotatably installed on the abutting rod installed on the side wall of the rectangular barrel in a sliding mode, an abutting spring is connected between the abutting rod and the rectangular barrel, and the unlocking plate far away from the sliding cavities and facing the sliding cavities is integrally provided with a vertical extending translation plate matched with the abutting rod.
Preferably, reciprocal transmission is fixed with L shape pole on the band pulley lateral wall of the reciprocal band pulley group and reciprocal band pulley group of locating the support body lateral wall, fixed mounting has the second gear of installing on the testing stand with the first gear and the first gear engagement that the axle center set up of band pulley in the reciprocal band pulley group has the rotation on the L shape pole, the second gear drive has the meshing pole and the meshing pole cooperation of rotating to install on the testing stand to rotate and installs the transmission pole in keeping away from the lifter of testing wheel, and the transmission pole rotates through first worm gear transmission drive testing pole, L shape pole is installed and is rotated the installation between first gear position and the testing stand.
Preferably, an organic whole is equipped with little ratch on the ring, and one-way transmission installs in the one-way lever of test bar including being located the vertical both sides of little ratch and rotating, it has third gear, two to be connected with torsional spring and the coaxial rotation of one-way lever between one-way lever and the test bar the common meshing of third gear has U-shaped rack and the test bar of slidable mounting on the test bar to be connected with one-way spring between, the cooperation of ring one end is kept away from to U-shaped rack has the release.
Preferably, the U-shaped rack is kept away from that ring one end an organic whole is equipped with the test rod with the axle center setting and with it slidable mounting's loose ring, and loosening device includes vertical slidable mounting on a rectangular cylinder and with loose ring complex butt board, be connected with between butt board and the rectangular cylinder and be fixed with protruding board on conflict spring and the butt board, rotate on the rectangular cylinder install with protruding board complex drive plate and drive plate be connected with rotate install the gear of loosening on the test rack, be equipped with on the support body with loosen the gear complex and loosen the rack.
The beneficial effects of the technical scheme are as follows:
(1) the device can automatically detect the straightness of the inner circular surface of the cylindrical part on a production line and is carried out under the condition that the production line does not shut down, and compared with the traditional manual measurement mode, the device can detect the straightness of different areas of the inner circular surface of the part at the same time, so that the detection structure is more accurate, the probability that defective products cannot be screened due to the omission of the part is further reduced, and the device automatically measures the part under the condition that the production line does not shut down, so that the detection efficiency is greatly improved;
(2) in the scheme, the device can also automatically remove unqualified defective products according to the measurement result of the detected parts, so that the qualification rate of the parts of the zero products on the production line is ensured, manual participation is not needed in the whole process, the labor cost is saved, and the benefit of an enterprise is maximized.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of a storage chamber of the present invention;
FIG. 3 is a schematic view of the testing stand of the present invention in an initial position;
FIG. 4 is a schematic view of the mounting relationship between the inspection frame and the U-shaped frame according to the present invention;
FIG. 5 is an enlarged view of the structure at A of the present invention;
FIG. 6 is a schematic view showing the installation relationship between the detecting rod and two rectangular cylinders according to the present invention;
FIG. 7 is a schematic view showing the fitting relationship of the lifter, the U-shaped frame and the rectangular cylinder according to the present invention;
FIG. 8 is a schematic diagram of the coordination relationship between the positioning rod and the positioning Ono pieces;
FIG. 9 is a schematic view of the engagement rod and the transmission rod of the present invention;
FIG. 10 is a schematic view of the engagement between the connecting rod and the translation plate according to the present invention;
FIG. 11 is a schematic view of the fitting relationship between the ring and the stop ring according to the present invention;
FIG. 12 is a schematic view of the engagement between the U-shaped rack and the third gear of the present invention;
FIG. 13 is a schematic view of the fitting relationship between the unidirectional rod and the micro-toothed rod according to the present invention;
FIG. 14 is a schematic view of the engagement between the abutting plate and the release ring according to the present invention;
FIG. 15 is a schematic view of the present invention with the defective product transferred to the purge conveying unit;
FIG. 16 is a schematic view of a detection wheel of the present invention positioned on the inner cavity wall of a part;
FIG. 17 is an enlarged view of the structure at B of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which reference is made to the accompanying drawings.
Embodiment 1, this embodiment provides an automatic checkout device of cylindric auto parts, as shown in fig. 1, including support body 1 and be equipped with transmission unit 11 (the direction of delivery of transmission unit is carried along the left side direction as shown in fig. 1), the improvement of this scheme lies in: a detection frame 2 is transversely and slidably mounted on a frame body 1, a U-shaped frame 3 is vertically and slidably mounted on the detection frame 2 (namely, the distance between the U-shaped frame 3 and a part to be detected can be adjusted by adjusting the vertical position of the U-shaped frame 3, the detection frame 2 and the U-shaped frame 3 can be connected through an electric telescopic rod, and the specific connection structure is not described herein too much), as shown in fig. 6, lifting rods 4 are vertically and slidably mounted on two cantilevers of the U-shaped frame 3, a positioning device matched with the lifting rods 4 is arranged on the U-shaped frame 3, and initially, when the part is not detected, the lifting rods 4 are in a fixed connection state with the U-shaped frame 3 under the action of the positioning device (each cantilever of the U-shaped frame 3 is matched with one lifting rod 4), and as shown in fig. 9, telescopic springs 6 are connected between the lifting rods 4 and corresponding rectangular cylinders 5;
as shown in the attached drawing 3, the detection frame 2 is connected with a reciprocating transmission device arranged on the side wall of the frame body 1 and the reciprocating transmission device is driven by a transmission unit 11, when the device is started, as shown in the attached drawing 2, a detection person firstly puts a cylindrical part (the height of a central shaft of the detection person when the detection person puts the part into a groove according to the part, and correspondingly adjusts the height of the U-shaped frame 3 in the vertical direction, so that the detection rod 7 is collinear with the central shaft of the cylindrical part) on the transmission unit 11 (as shown in the attached drawing 1, the transmission unit 11 is provided with a groove matched with the cylindrical part, so that the cylindrical part can be stably placed in the groove, at the moment, the detection frame 2 is positioned at the right side of the part to be detected), a friction damping sheet is arranged in the groove and used for increasing the friction resistance between the cylindrical part and the groove, then the transmission unit 11 is started, and then the transmission unit 11 drives the cylindrical part to move forward, meanwhile, the reciprocating pulley set 38 is driven to move synchronously, and the detection frame 2 is driven to move forwards synchronously along with the movement of the reciprocating pulley set 38, as shown in fig. 3, the reciprocating transmission device and the transmission unit 11 are matched to meet the following requirements: the speed of driving the detection frame 2 to move is higher than the speed of the transmission unit 11 (i.e. the speed of the detection frame 2 is higher than the speed of the part), so that when the unlocking device close to the part touches the inner circle surface of the cylindrical part, the positioning device releases the positioning of the lifting rod 4, the lifting rod 4 is pressed by the cylindrical part and slides downwards along the rectangular cylinder 5 (the telescopic spring 6 is compressed, the detection rod 7 is fixedly connected with the U-shaped frame 3 through the lifting rod 4 far away from one end of the part, the lifting rod 4 far away from one end of the part is initially fixedly connected with the U-shaped frame 3 under the action of the positioning device, the frictional resistance between the cylindrical part and the groove is enough to overcome the mutual acting force generated when the lifting rod 4 moves downwards under the extrusion of the cylindrical part and compresses the telescopic spring 6, that is, that no relative sliding is generated between the cylindrical part and the groove), when the detection frame 2 moves continuously to enable the lifting rod 4 close to one end of the part to move into the part (at the moment, the cantilever of the U-shaped frame 3 is positioned above the part), the detection wheels 8 are enabled to be drawn into the inner cavity of the cylindrical part (the detection spring 9 is connected between the detection wheel 8 and the detection rod 7, when the detection wheels 8 touch the inner circular surface wall of the matched part, the detection wheels 8 move towards the direction of compressing the detection spring 9, so that when the detection wheels are drawn into the inner cavity of the part, the detection wheels 8 always abut against the inner cavity wall of the part under the action of the detection spring 9, when the detection wheels 8 are drawn into the inner cavity of the part, the straightness of the inner cavity wall of the cylindrical part is measured (the detection wheels 8 drive the detection devices arranged on the detection rod 7, if the surface of the inner cavity wall is low in straightness, the detection wheels 8 move along with the detection frame 2, reciprocating movement is carried out along the radial direction of the detection rod 7 under the action of the detection spring 9, and the measuring device judges whether the part reaches the standard or not and is qualified according to the reciprocating movement condition of the detection wheel 8);
as shown in fig. 2, it should be noted that: when the lifting rod 4 which is close to the part initially passes over the part, the lifting rod 4 which has passed over the part at the moment moves up to the position matched with the cantilever of the U-shaped frame 3 under the action of the telescopic spring 6 and is positioned by the positioning device again (to realize the fixed connection with the U-shaped frame 3), the plurality of detection wheels 8 are made to touch the end surface of the part along with the continuous forward movement of the detection frame 2, the detection wheels 8 move along the radial direction of the detection rod 7 (to compress the detection spring 9), so that when the detection wheels 8 completely slide into the inner cavity of the part, the lifting rod 4 which is far away from the part at the initial moment moves to the position touching the tail part of the part along with the continuous movement of the detection frame 2, the lifting rod 4 which is far away from the part at the initial moment is made to break connection between the lifting rod 4 and the cantilever of the U-shaped frame 3 under the action of the unlocking device, the lifting rod 4 which is close to the part at the initial moment is matched with the positioning device to realize the U-shaped connection with the U-shaped frame 3, the telescopic spring 6 is pressed downwards sliding rod 7 under the action of the extrusion of the part at the initial moment The frame 3 is fixedly connected, so that when the detection wheels 8 completely penetrate out of the inner cavity of the part (at the moment, the measurement of the straightness of the wall of the inner cavity of the part is completed), the detection frame 2 is continuously driven to move forwards for a slight distance under the action of the reciprocating transmission device, so that after the detection wheels 8 and the front end surface of the part are pulled apart for a certain distance (at the moment, the lifting rod 4 which is far away from the part is still positioned in the inner cavity of the part and does not penetrate out of the part at the beginning), the reciprocating transmission device just drives the detection frame 2 to move for a distance of half a period (the detection frame 2 stops moving forwards at the moment, the detection frame 2 moves to the farthest position along the side wall of the frame body 1), and the detection device arranged on the detection rod 7 judges whether the part is qualified or not through the actions of the detection wheels 8 in the process;
(1) if the detection device judges that the part is a defective product, a blocking mechanism (the blocking mechanism is arranged on the side wall of the rectangular cylinder 5 close to one end of the part at the beginning) is triggered and acts, so that the unlocking device close to the part at the beginning is locked (namely, the unlocking device cannot act at the moment), and the transmission unit 11 moves along with the movement of the transmission unit 11, so that one end of the head of the part touches the unlocking device again, because the unlocking device is locked at the moment, the unlocking device cannot act even if the part is extruded, namely, one end of the head of the part is butted on the unlocking device and cannot move forwards along with the transmission unit 11, and then the reciprocating pulley set 38 starts to drive one end of the detection frame 2 in the opposite direction, namely, the unqualified part is driven to move in the opposite direction (at the moment, relative sliding is generated between the part and the groove of the transmission unit 11), so that the detection frame 2 moves to the beginning position under the action of the reciprocating pulley set 38 (at the moment, the detection frame 2 stops moving) As shown in fig. 15, the unqualified parts are just driven to move to the removing and conveying unit 10 (the conveying direction of the removing and conveying unit 10 is opposite to that of the conveying unit 11), when the unqualified parts are pushed to the removing and conveying unit 10, the unqualified parts move along the right side shown in fig. 1 under the action of the removing and conveying unit 10, so that the unqualified parts are removed, as shown in fig. 15, grooves matched with the parts are also formed in the removing and conveying unit 10 (friction damping sheets are arranged in the grooves), and friction between the parts and the grooves is enough to ensure that the parts can sequentially pass over a plurality of detection wheels 8, unlocking devices and lifting rods 4 matched with the detection wheels when moving along with the removing and conveying unit 10;
(2) if the detection device judges the parts and the qualified products, the blocking mechanism cannot be triggered and acts, when one end of the head of the part is driven by the transmission unit 11 to move to a position, close to the lifting rod 4 of the part initially (at the moment, the unlocking device is touched and extruded by the part and acts), the positioning device releases the positioning of the lifting rod 4 and enables the part to cross the lifting rod 4, the part is conveyed by the transmission unit 11 to move to a downward movement processing link, and the reciprocating transmission device synchronously drives the detection frame 2 to move to the initial position in the process that the part crosses the lifting rod 4, so that the downward movement of the part is measured;
when the detection frame 2 moves to the initial position under the action of the reciprocating transmission device, a measurer places the part to be detected, which moves downwards, at the corresponding position on the transmission unit 11, and then the processes are repeated, so that the non-stop measurement of the cylindrical part can be realized, and the defective products can be correspondingly removed according to the measurement result.
Embodiment 2, on the basis of embodiment 1, as shown in fig. 7, the arc-shaped rods 13 are integrally arranged on two lateral sides of the lifting rod 4 initially close to the component, and the arc-shaped rod 13 is arranged on one lateral side of the lifting rod 4 initially far from the component (as the lifting rod 4 initially far from the component does not penetrate through the inner cavity wall of the component in the whole detection process, only one arc-shaped rod 13 is arranged), as shown in fig. 7 and 8, when the reciprocating pulley group 38 drives the detection frame 2 to move, the unlocking plate 16 close to the component first touches the end surface of the component and forces the unlocking plate 16 to slide along the radial direction of the arc-shaped rod 13 corresponding to the end surface (the unlocking spring 17 is compressed), the link mechanism comprises a first link 19 rotatably mounted with the unlocking plate 16, and a second link 20 is slidably mounted on the first link 19 (the second link 20 is slidably mounted on the detection rod 7), the second link 20 rotatably mounted with two third links 21, as shown in fig. 9, the third link 21 is rotatably installed with an exiting rod 18 slidably installed in the lifting rod 4, when the unlocking plate 16 moves along the radial direction of the arc rod 13, the first link 19, the second link 20, and the third link 21 drive the two exiting plates to move away from each other (initially, the exiting plates are respectively in contact with the corresponding positioning rods), and the positioning rods are outwardly exited from the positioning rods installed in the lifting rod 4 along with the movement of the exiting plates, so that when the positioning rods are completely exited from the corresponding positioning holes 15, the lifting rod 4 is no longer fixedly connected with the cantilevers of the U-shaped frame 3, and along with the continuous movement of the detection frame 2, the lifting rod 4 is made to slide downwards along the rectangular tube 5 under the extrusion of the part, so that the lifting rod 4 is made to slide into the inner cavity of the part (the upper end of the lifting rod 4 abuts against the inner cavity wall of the part, the positioning rod slidably mounted on the cantilever of the U-shaped frame 3 is reset under the action of the positioning spring 14), and the unlocking plate 16 does not abut against the part and moves to the initial position state under the action of the unlocking spring 17 (the highest point of the two arc-shaped rods 13 integrally connected with the lifting rod 4 abuts against the inner cavity wall of the part), so that the two withdrawing plates move to the initial position;
as shown in fig. 16, when the lifting rod 4 with the arc rod 13 on each side completely passes over the part, the lifting rod 4 no longer abuts against the inner cavity wall of the part and moves up under the action of the extension spring 6, and finally extends into the cantilever of the U-shaped frame 3, referring to fig. 9, we set the lower end face of one side of the two positioning rods opposite to each other with a rounded corner, and in the process of sliding the lifting rod 4 into the cantilever of the U-shaped frame 3, the upper end of the lifting rod 4 first touches the rounded corner of the two positioning rods and forces the two positioning rods to move away from each other, so that when the positioning hole 15 on the lifting rod 4 moves up to the position corresponding to the positioning rods, the two positioning rods are inserted into the positioning hole 15 under the action of the positioning spring 14 and positioning the lifting rod 4 is realized, that, as shown in fig. 16, the detection frame 2 is driven to move forward continuously under the action of the reciprocating pulley set 38 (at this time, the detection wheels 8 are placed in the inner cavity of the part), so that the detection wheels 8 completely slide out of the inner cavity of the part (the straightness of the inner cavity of the part is finished);
the detecting device disposed on the detecting rod 7 further determines whether the part is up to standard and qualified according to the detected condition, and then controls whether the blocking mechanism is operated, as shown in fig. 16, arc-shaped rods 13 are disposed on both sides of one of the lifting rods 4, when the part is detected to be qualified (the blocking mechanism is not operated), when the reciprocating pulley set 38 drives the detecting frame 2 to move to the initial position (at this time, the part is moved to the direction away from the initial position all the time under the action of the transmission unit 11), and the unlocking plate 16 facing one end of the head of the part touches one end of the head of the part, so that the unlocking plate 16 moves along the radial direction of the corresponding arc-shaped rod 13 and the two exit plates move to the direction away from each other (the positioning rod is exited from the positioning hole 15), so that the lifting rod 4 moves downward under the extrusion of the part (so that the qualified part passes over the lifting rod 4 again), that is, any unlocking plate 16 on the lifting rod 4 with two arc-shaped rods 13 can be driven by the extrusion of the parts to move the withdrawing plate and withdraw the positioning rod from the corresponding positioning hole 15.
Embodiment 3, on the basis of embodiment 2, as shown in fig. 6, a plurality of sliding cavities 22 are formed on the detection rod 7 at a position close to one of the rectangular cylinders 5 (i.e., the rectangular cylinder 5 vertically slidably fits with the lifting rod 4 provided with only one arc-shaped rod 13) at intervals along the radial direction thereof, and the detection wheel 8 is slidably mounted in the corresponding sliding cavity 22 (as shown in fig. 5, the detection wheel 8 is rotatably mounted with a mounting rod and the mounting rod is slidably mounted in the sliding cavity 22, the mounting rod is not numbered in the drawing), the stroke amplification device comprises a first amplification rack 23 connected with the mounting rod, the first amplification rack 23 is engaged with a first amplification gear 24 rotatably mounted in the sliding cavity 22, the first amplification gear 24 coaxially rotates with a second amplification gear 25, and the second amplification gear 25 drives a measurement rod 26 slidably mounted on the side wall of the sliding cavity 22 (the measurement rod 26 is provided with a gear system engaged with the second amplification gear 25), when the detection wheel 8 moves along the inner cavity wall of the part (if the inner cavity wall surface of the part is uneven), the mounting rod is caused to reciprocate along the sliding cavity 22 under the action of the detection spring 9, and then the measurement rod 26 is driven to drive the conducting strip 27 to reciprocate along the surface of the resistance sheet 28 (the larger the displacement amplitude of the conducting strip 27 driven by the measurement rod 26 to reciprocate along the surface of the resistance sheet 28 is, the lower the possibility that the straightness of the inner cavity of the part reaches the standard is, so that the resistance of the resistance sheet 28 connected in series into the voltage stabilizing loop changes;
the data processing device detects the size range of current change in the voltage stabilizing loop through an ammeter to judge whether the straightness of the inner cavity of the part is up to standard and qualified, the first amplifying gear 24 is smaller than the diameter of the second amplifying gear 25 to realize the stroke amplifying effect (the small displacement of the first amplifying rack 23 increases the displacement amplitude of the movement of the measuring rod 26 under the action of the first amplifying gear 24 and the second amplifying gear 25, so that the variation of the resistance value of the resistance sheet 28 is increased, and whether the straightness of the inner cavity of the part is up to standard is judged according to the variation of the resistance value of the resistance sheet 28 connected in series into the voltage stabilizing loop), and insulating materials are arranged at the installation positions of the side walls of the resistance sheet 28 and the sliding cavity 22 and at the installation positions of the conducting sheet 27 and the measuring rod 26 to ensure the stability of the voltage stabilizing.
Embodiment 4, based on embodiment 3, as shown in fig. 5, the measuring rod 26 is fitted with an actuating rod 29 slidably mounted along the length direction of the detecting rod 7, and an actuating spring 30 is connected between the actuating rod 29 and the detecting rod 7 (as shown in fig. 17), in this solution, one of the actuating rods 29 is provided with four actuating rods 29 and corresponds to four measuring rods 26, one end of the actuating rod 26, which is fitted with the actuating rod 29, is provided with an inclined surface (the actuating rod 29 is slidably mounted and fitted with the corresponding sliding cavity 22), as shown in fig. 5 (initially, when the measuring rod 26 is not moved, the two inclined surfaces are abutted together), when the measuring rod 26 is moved under the action of the second amplifying gear 25, the measuring rod 26 drives the actuating rod 29 corresponding thereto to move along the length extending direction of the detecting rod 7 through the mutual interference of the inclined surface pieces, as shown in fig. 10, the other ends of the actuating rods 29 are provided with a circular ring 31 slidably mounted on the detecting rod 7, and initially, the side walls of the actuating rods 29 and the circular ring 31 are provided In contrast, when one of the measuring rods 26 moves along the side wall of the sliding cavity 22, the corresponding actuating rod 29 is forced to move along the length extension direction of the detecting rod 7 through the interaction between the inclined surfaces, the ring 31 is forced to move along the length extension direction of the detecting rod 7 along with the movement of the actuating rod 29, the blocking ring 32 which is coaxially and rotatably installed with the ring 31 is synchronously driven to move along with the movement of the ring 31, so that the blocking ring 32 drives the blocking mechanism to act, starting from the sliding of the plurality of detecting wheels 8 into the inner cavity of the part, if the straightness of the inner cavity of the part is qualified, the detecting wheels 8 always move along the corresponding sliding cavity 22 within a qualified range (the ring 31 also always moves within a corresponding range, the blocking mechanism cannot lock the unlocking device), and if the straightness of the inner cavity of the part is unqualified, the moving distance range between one or more detecting wheels 8 and the corresponding sliding cavity 22 exceeds the range The set displacement (the distance that the ring 31 moves along the length extension direction of the detection rod 7 also exceeds the set displacement), at this time, the blocking mechanism can lock the unlocking device;
when the detection wheels 8 completely cross the part (at this time, the detection of the straightness of the part is completed), if the displacement of the ring 31 moving along the detection rod 7 in the above process exceeds the set range (because the ring 31 is connected with the one-way transmission device arranged on the detection rod 7, when the ring 31 moves along the extension direction of the length of the detection rod 7 under the action of the execution rods 29, it can only move in the direction away from the detection wheels 8 and is constantly positioned by the one-way transmission device, i.e. the ring 31 can only move forward and cannot move backward), the ring 31 further drives the blocking mechanism through the blocking ring 32 to lock the unlocking device, when the reciprocating pulley set 38 drives the detection frame 2 to move in the opposite direction, as shown in fig. 16, when the unlocking plate 16 facing one end of the head of the part touches the end of the head of the part, it will not move again and force the part to slide relatively with respect to the grooves on the transmission unit 11, that is, the parts are moved toward the initial position and pushed onto the cleaning and conveying unit 10 by the reciprocating pulley set 38 (to complete the rejection of the rejected parts);
when the reciprocating pulley set 38 drives the detection frame 2 to move to the initial position, that is, as shown in fig. 15 (at this time, an unqualified part is transferred to the cleaning and conveying unit 10), at this time, the one-way transmission device is separated from the contact with the ring 31, so that the ring 31 is reset (moved to the initial position) under the action of the reset spring 72, when the detection wheel 8 is not in contact with the inner cavity wall of the part, the mounting rod on which the detection wheel 8 is rotatably mounted is reset under the action of the detection spring 9, and the execution rods 29 are reset simultaneously under the action of the execution spring 30, and then the measurer moves the part to be detected down to place the part in the groove on the conveying unit 11 (as shown in fig. 1), and then the reciprocating pulley set 38 drives the detection frame 2 to continue to do reciprocating movement, thereby realizing the measurement of the next part.
Embodiment 5, on the basis of embodiment 4, as shown in fig. 10, the blocking mechanism includes a blocking cylinder 33 rotatably installed on the sidewall of the rectangular cylinder 5 away from the plurality of sliding cavities 22, and blocking rods 34 are slidably installed at two ends inside the blocking cylinder 33, wherein one blocking rod 34 is rotatably installed with the blocking ring 32 and the other blocking rod 34 is rotatably installed with an abutment rod 35 slidably installed on the sidewall of the rectangular cylinder 5, and initially, the distance between the abutment rod 35 and the translation plate 37 satisfies: when the unlocking plate 16 moves along the corresponding arc rod 13 in the radial direction until the unlocking plate cannot move any further (at this time, the corresponding positioning rod is already withdrawn from the positioning hole 15 by the two withdrawing rods 18), and at this time, the translation plate 37 and the abutting rod 35 are not in contact with each other and are spaced apart by a certain distance (as shown in fig. 6, we integrally provide the translation plate 37 on the unlocking plate 16 away from the sliding cavities 22 and facing the sliding cavities 22), when the ring 31 is interfered and extruded by the actuating rods 29, the abutting rod 35 is driven to move towards the direction close to the translation plate 37 by the blocking ring 32, the blocking cylinder 33 and the blocking rod 34, if the distance that the ring 31 moves along the length extension direction of the detecting rod 7 exceeds the set range, that is, the distance that the abutting rod 35 is driven to move towards the direction close to the translation plate 37 is too long to make the unlocking plate 16 move along the radial direction of the arc rod 13 by the interference of the parts, the translation plate 37 cannot move a corresponding distance along the radial direction of the arc-shaped rod 13 due to the blocking of the abutting rod 35 (at this time, the unlocking plate 16 cannot eject the positioning rod from the positioning hole 15 through the two ejecting rods 18), so that the lifting rod 4 cannot release the positioning of the positioning device, and the lifting rod 4 is still fixedly connected with the cantilever of the U-shaped frame 3 (a part cannot cross the lifting rod 4);
therefore, when the plurality of detection wheels 8 completely cross the part and the straightness of the inner cavity of the part is unqualified, when the reciprocating pulley set 38 drives the detection frame 2 to move reversely, the unlocking plate 16 abuts against one end of the head of the unqualified part and drives the part and the groove of the transmission unit 11 to slide relatively, and the unqualified part is pushed to the cleaning and conveying unit 10;
in the scheme, four actuating rods 29 correspond to four detection wheels 8, when a plurality of detection wheels 8 slide into the inner cavity of the part to finally slide out of the inner cavity of the part, if one detection wheel 8 detects that the straightness of the inner cavity of the part is unqualified in the detection process, the part is considered as a defective product, the abutting springs 36 are used for enabling the abutting rods 35 to synchronously reset when the detection frame 2 moves to the initial position and the circular rings 31 finish resetting, and the circular rings 31 are connected with the return springs 72 (when the circular rings 31 reset under the action of the return springs 72, the abutting rods 35 are driven to reset through the blocking cylinders 33 and the blocking rods 34 synchronously), so the abutting springs 36 do not need to be arranged.
Embodiment 6, on the basis of embodiment 5, as shown in fig. 3, the reciprocating transmission device includes a reciprocating pulley set 38 disposed on a side wall of the frame body 1, and an L-shaped rod 39 is fixed on a pulley side wall of the reciprocating pulley set 38 (as shown in fig. 4, a thickness of a pulley in the reciprocating pulley set 38 is greater than a depth of a groove of the pulley and the pulley can be partially exposed to facilitate installation of the L-shaped rod 39), as shown in fig. 3, the transmission unit 11 is connected with the reciprocating pulley set 38 through a speed regulating gear set 69, so that an operating speed of the reciprocating pulley set 38 is greater than an operating speed of the transmission unit 11, and a groove hole (not numbered in the drawing) slidably fitted with the detection frame 2 is formed on the side wall of the frame body 1;
a first gear 40 coaxially arranged with a belt wheel in the reciprocating belt wheel set 38 is fixedly arranged on the L-shaped rod 39, the first gear 40 is meshed with a second gear 41 rotatably arranged on the detection frame 2, when the reciprocating belt wheel set 38 drives the detection frame 2 to move along the frame body 1 through the L-shaped rod 39, relative rotation between the first gear 40 and the second gear 41 (namely, relative rotation between the L-shaped rod 39 and the detection frame 2) cannot be generated, only when the reciprocating belt wheel set 38 drives the L-shaped rod 39 to move to the position shown in figure 4 (namely, when the upper end and the lower end of the belt wheel are positioned), the detection frame 2 cannot continue to move (by setting the length of the slotted hole, when the L-shaped rod 39 moves to the position shown in figure 4, the detection frame 2 already moves to the edge position of the slotted hole and is blocked by the slotted hole), along with the continuous operation of the reciprocating belt wheel set 38, the L-shaped rod 39 is driven to rotate relative to the detecting frame 2, the second gear 41 rotatably mounted on the detecting frame 2 is driven to rotate along with the rotation of the L-shaped rod 39, the second gear 41 drives a second worm gear 45 rotatably mounted on the detecting frame 2 through a belt transmission provided on the detecting frame 2, the second worm gear 45 drives a meshing rod 42 rotatably mounted on the U-shaped frame 3 through a belt transmission, as shown in fig. 6, the meshing rod 42 is matched with a transmission rod 43 rotatably mounted in a lifting rod 4 far away from the detecting wheel 8, as shown in fig. 9, a second transition cylinder 71 rotatably mounted with the transmission rod 43 in an axial sliding manner is rotatably mounted on the rectangular cylinder 5, and the second transition cylinder 71 drives a first worm gear transmission device through belt transmission, the first worm gear 44 drives the detecting rod 7 to rotate for a certain angle (a transmission ratio can be set in the scheme, the detection rod 7 can be driven to rotate by 45 degrees;
in order to rotate the detecting rod 7, in order to perform secondary measurement and detection on other positions of the inner cavity of the part, that is, after the plurality of detecting wheels 8 slide into the inner cavity of the part to finally slide out of the inner cavity of the part, if the straightness of the inner cavity of the part is detected to be qualified, in order to make the detection structure closer to the real condition, referring to fig. 3, when the reciprocating pulley set 38 drives the detecting frame 2 to move to the farthest distance (at this time, a primary measurement operation on the straightness in the part is completed), along with the continuous operation of the reciprocating pulley set 38, the detecting frame 2 does not move any more at this time, the L-shaped rod 39 starts to be driven to rotate relative to the detecting frame 2, and then the first gear 40, the second gear 41, the meshing rod 42 and the transmission rod 43 drive the detecting rod 7 to rotate 45 degrees, so that when the detecting frame 2 starts to stop moving, the reciprocating pulley set 38 drives the L-shaped rod 39 to rotate half a turn, at this time, the reciprocating pulley set 38 starts to drive the detection frame 2 to move towards the initial position (i.e. to move in the reverse direction) through the L-shaped rod 39, the detection rod 7 is driven to rotate 45 degrees in the process of rotating the L-shaped rod 39 for a half circle, the part moves forward all the time under the action of the transmission unit 11, so that when the detection wheels 8 slide into the inner cavity of the part again (at this time, the positions of the detection wheels 8 abutting against the inner cavity of the part change, i.e. the straightness of other parts of the inner cavity of the part starts to be measured), as shown in fig. 16, when the reciprocating pulley set 38 drives the detection frame 2 to move in the reverse direction, the part moves forward all the time under the action of the transmission unit 11, so that when the detection wheels 8 slide out of the inner cavity of the part again, at this time, the lifting rod 4 far away from the sliding cavity 22 does not move to the position abutting against the head of the part, if the inner cavity of the part is detected to have a situation that the straightness is not qualified in the above process, the blocking mechanism is actuated and the unlocking plate 16 connected with the translation plate 37 is blocked from moving, so that the corresponding lifting rod 4 cannot be unlocked, and therefore, the part cannot cross the lifting rod 4, and the part is driven by the detection frame 2 to move towards the initial position under the action of the unlocking plate 16 so as to be pushed onto the cleaning and conveying unit 10 (to be removed);
when the detecting frame 2 moves to the initial position under the action of the belt pulley set, as shown in fig. 15, the reciprocating belt pulley set 38 cannot drive the detecting frame 2 to move (at this time, the unqualified part is transferred to the removing and conveying unit 10 and starts to move to the right direction as shown in fig. 15), then the L-shaped rod 39 starts to rotate relative to the detecting frame 2 (the detecting rod 7 rotates 45 ° again, so that the position relation of the detecting wheels 8 relative to the part is kept the same as the initial time again, we set that when the detecting rod 7 rotates 45 °, the part faces one end of the detecting wheels 8 under the action of the removing and conveying unit 10 and does not move to the position contacting with the detecting wheels 8, when the part moves to the position contacting with the detecting wheels 8 and the detecting wheels 8 slide into the inner cavity of the part again, because the first detecting result is qualified, when the part moves to the right side in fig. 15, the blocking mechanism does not hinder the unlocking plate 16 from moving), in the subsequent process, unqualified parts sequentially cross a plurality of detection wheels 8 and the lifting rod 4 close to the detection wheels 8, when the reciprocating belt wheel group 38 drives the L-shaped rod 39 to rotate for half a circle, the detection frame 2 is driven to move towards the direction far away from the cleaning and conveying unit 10, and the next part to be detected is measured;
referring to fig. 9, the lower end of the engaging rod 42 is higher than the bottom end of the cantilever of the U-shaped frame 3 when the engaging rod 42 is provided, and the upper end of the transferring rod 43 is lower than the top end of the lifting rod 4 when the transferring rod 43 is provided, so that when the lifting rod 4 is separated from the cantilever of the U-shaped frame 3, the engaging rod 42 is still in the cantilever of the U-shaped frame 3, and the transferring rod 43 is also in the lifting rod 4 (the engaging rod 42 and the transferring rod 43 are not arranged to prevent the passing of the parts), when the parts pass over the lifting rod 4 and the lifting rod 4 is inserted into the cantilever of the U-shaped frame 3 again under the action of the expanding spring 6 and is positioned, the engaging rod 42 and the transferring rod 43 are engaged together again (the transmission of the power can be realized), as shown in fig. 10, because the blocking ring 32 and the circular ring 31 are rotatably installed, the detecting rod 7 rotates relative to the rectangular tube 5, the connection relationship between the blocking ring 32 and the blocking rod 34 is not obstructed;
referring to fig. 9, how the engaging rod 42 and the transmitting rod 43 are engaged together, we have a plurality of engaging plates 46 spaced around the bottom of the engaging rod 42, and a plurality of transmitting plates 47 spaced around the top wall of the transmitting rod 43 and engaged with the engaging plates 46, when the top of the lifting rod 4 is placed in the cantilever of the U-shaped frame 3, the engaging plates 46 and the transmitting plates 47 are interlaced with each other (as shown in the enlarged structure of fig. 9) to achieve power transmission, when the lifting rod 4 moves downwards and is separated from the cantilever of the U-shaped frame 3, the transmitting rod 43 moves downwards synchronously along with the lifting rod 4 and drives the transmitting plates 47 to be separated from contact with the plurality of engaging plates 46, and in order to make the engaging rod 42 and the transmitting rod 43 separated from the engaging, the engaging plates 46 and the transmitting plates 47 are chamfered to one side.
Example 7, on the basis of example 4, as shown in fig. 12 and 13, a micro-toothed bar 48 is integrally provided on a circular ring 31, a one-way transmission device comprises one-way bars 49 which are positioned at two longitudinal sides of the micro-toothed bar 48 and are rotatably mounted on a detection bar 7 (the one-way bars 49 are sharpened at the positions matched with the micro-teeth on the micro-toothed bar 48, as shown in fig. 13, and abut against the micro-teeth on the side wall of the micro-toothed bar 48 to achieve the positioning effect on the circular ring 31), a torsion spring 50 is provided at the rotatably mounting positions of the one-way bars 49 and the detection bar 7, so that the two one-way bars 49 always tend to rotate towards the mutually approaching direction (i.e. the circular ring 31 can only move towards the direction far away from the detection wheel 8 and can be positioned at any moment), as shown in fig. 12, a third gear 51 which coaxially rotates with the one-way bars 49 is provided on the detection bar 7, and the third gear 51 is meshed with a U-shaped rack 52 which is slidably mounted on the detection bar 7, when the ring 31 moves along the detection rod 7, the two one-way rods 49 are forced to rotate in the direction away from each other and the U-shaped rack 52 is driven to move through the third gear 51, and after the one-way rods 49 cross the micro-teeth on the micro-tooth rod 48, the one-way rods 49 are driven to rotate in the opposite direction under the action of the torsion spring 50 (the pointed positions of the one-way rods 49 are abutted to the micro-teeth again, and the third gear 51 is driven to rotate in the opposite direction, so that the U-shaped rack 52 is reset, because the one-way spring 53 is connected between the U-shaped rack 52 and the detection rod 7, the U-shaped rack 52 cannot easily move relative to the detection rod 7, and only when the ring 31 moves, the U-shaped rack 52 can be driven to move);
if the part is detected to have unqualified straightness in the process that the detection wheel 8 moves along the inner cavity of the part, the ring 31 is made to move towards the direction far away from the detection wheel 8, and the abutting rod 35 is driven by the blocking ring 32 and the blocking mechanism to move towards the direction close to the translation plate 37, so that when the unlocking plate 16 connected with the translation plate 37 is contacted with the part, the unlocking plate 16 is blocked from moving, and further, when the unlocking plate 16 moves to be incapable of moving, the positioning rod cannot be forced to withdraw from the corresponding positioning hole 15 through the two withdrawing rods 18 (namely, the part cannot cross the lifting rod 4), and the effect of pushing the unqualified part to the cleaning and conveying unit 10 is achieved;
at the end of the U-shaped rack 52 remote from the ring 31, we fit a release device that satisfies: when the wheel set cannot be carried with the detection frame 2 to the initial position, the release device enables the U-shaped rack 52 to move a certain distance in the direction away from the stop ring 32, and further drives the two one-way rods 49 to rotate a certain angle in the direction away from each other (so that the sharpening position of the one-way rods 49 is not interfered with the micro-teeth on the side walls of the positioning rack rods), thereby releasing the positioning of the micro-tooth rods 48, and enabling the circular ring 31 to move towards the initial position under the action of the return spring 72 (so that the abutting rods 35 synchronously move in the direction away from the translation plate 37 and move to the initial position).
Embodiment 8, on the basis of embodiment 7, as shown in fig. 14, an opening ring 54 coaxially and slidably mounted with the detection rod 7 is integrally disposed at one end of the U-shaped rack 52 away from the circular ring 31, the releasing device includes an abutting plate 55 vertically slidably mounted on the rectangular cylinder 5 and engaged with the opening ring 54 (the abutting plate 55 and the opening ring 54 are chamfered), as shown in fig. 3, when the reciprocating pulley set 38 drives the detection frame 2 to move to the initial position, the releasing gear 59 is driven to rotate by the engagement of a releasing rack 60 disposed on the frame body 1 and a releasing gear 59, as shown in fig. 5, a first transition cylinder 70 is rotatably mounted on the lifting rod 4 close to the detection wheel 8, and the first transition cylinder 70 is vertically slidably engaged with the rotating shaft of the releasing gear 59 (the sliding engagement portion of the first transition cylinder 70 and the rotating shaft of the releasing gear 59 is provided with a friction damping ring, the first transition cylinder 70 is driven to rotate synchronously by friction resistance), the first transition cylinder 70 is in axial sliding fit with a rotating shaft of the driving plate 58, when the loose gear 59 rotates, the driving plate 58 is driven to rotate synchronously, the protrusion plates 57 are forced to move vertically along with the rotation of the driving plate 58 (arc protrusions are arranged on the opposite sides of the driving plate 58 and the protrusion plates 57 and are staggered with each other initially, as shown in fig. 5, when the driving plate 58 rotates, the protrusion plates 57 are forced to move downwards by the matched arc protrusions, the synchronous moving abutting plate 55 moves downwards along the side wall of the rectangular cylinder 5 along with the downward movement of the protrusion plates 57 (so that the abutting springs 36 are compressed), the loose ring 54 is forced to move towards the direction far away from the detection wheel 8 along with the downward movement of the abutting plate 55 (as shown in fig. 6), and the U-shaped rack 52 is driven to move towards the direction close to the detection wheel 8, so that the two unidirectional rods 49 are separated from the micro-teeth on the side wall of the micro-tooth rod 48, and the circular ring 31 is reset;
as shown in fig. 7, when the first transition cylinder 70 is disposed such that the upper end thereof is lower than the top end of the lifting rod 4, so as to ensure that the lifting rod 4 moves downward and is separated from the cantilever of the U-shaped frame 3, the first transition cylinder 70 does not hinder the parts from passing through the lifting rod 4, when the release gear 59 rotates, the transmission of power is realized through the friction damping ring disposed in the first transition cylinder 70 (since only a small acting force is required to drive the U-shaped rack 52 to move toward the direction close to the detection wheel 8, thereby releasing the positioning of the ring 31, so as to reset the ring 31), so that the transmission of power between the rotating shaft of the first transition cylinder 70 and the release gear 59 through the friction damping ring is sufficient to achieve the above-mentioned effect.
Referring to fig. 2, in the present embodiment, a storage cavity 63 is provided on a frame body 1, and cylindrical parts to be detected are stacked in the storage cavity 63, as shown in fig. 3, the top of the storage cavity 63 is provided with an arc and connected with a feeding mechanism (not shown), two control plates 64 are vertically and slidably mounted on two side walls of the storage cavity 63 at intervals and connected via a control link mechanism 65, the two control link mechanisms 65 are connected via a pulley set with a gear set rotatably mounted on the wall of the storage cavity 63 and one of the gears is coaxially and rotatably mounted with a control gear 66, the control gear 66 is engaged with a control rack 67 slidably mounted on the frame body 1 (a control spring 68 is connected between the control rack 67 and the frame body 1), as shown in fig. 3, when the device is not started, we set the detection frame 2 to be at a position far away from the cleaning and conveying unit 10 (i.e., when the device is started (the cylindrical part to be measured is placed in the storage cavity 63 in advance and the two control plates 64 at the upper end do not extend into the inner cavity of the cylindrical part, and the two control plates 64 at the lower end are abutted against the bottom wall of the part at the lowest end, as shown in figure 2), the detection frame 2 is firstly driven to move towards the direction close to the cleaning and conveying unit 10, so that when the detection frame 2 touches the vertically extending part of the control rack 67 (the control rack 67 is set to be L-shaped as shown in figure 2) in the moving process of the detection frame 2, the control rack 67 starts to be synchronously driven to move and drive the control gear 66 to rotate along the anticlockwise direction as shown in figure 2, and then the two control link mechanisms 65 are driven to act through the belt wheel set, so that the two control plates 64 at the lower end are not abutted against the bottom wall of the part at the lowest end any more, so that when the detection frame 2 moves to a position close to one end of the clearing and conveying unit 10 under the action of the reciprocating pulley set 38 (the detection frame 2 stops moving), the two control plates 64 at the lower end are not abutted with the parts at the lowest end any more (at this time, the two control plates 64 at the upper end are inserted into the inner cavity of the parts at the penultimate position and abutted with the top wall of the inner cavity of the parts at the penultimate position to limit the parts at the penultimate position), and at this time, the parts at the lowest end fall down into the grooves on the conveying unit 11;
when the reciprocating pulley set 38 drives the detection frame 2 to move away from the clear conveying unit 10, the control rack 67 is synchronously reset under the action of the control spring 68 and drives the two control plates 64 at the lower end to move towards the direction close to each other through the two control link mechanisms 65, and drives the two control plates 64 at the upper end to move towards the direction away from each other, so that when the two control plates 64 at the upper end slide out from the material storage cavity 63, the part at the penultimate position falls downwards to the upper end surfaces of the two control plates 64 at the lower end, and further the sequential feeding effect is realized;
it is to be noted here that: only when unqualified parts completely cross the lifting rod 4 close to the detection wheel 8, the unlocking plate 16 far away from one end of the detection wheel 8 is contacted with the end face of the next part to be measured (so that the detection rod 7 can be fixedly connected with the U-shaped frame 3 all the time, and the two lifting rods 4 are prevented from being separated from the U-shaped frame 3 at the same time).
The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims (8)

1. An automatic detection device for cylindrical automobile parts comprises a frame body (1), wherein a transmission unit (11) is arranged on the frame body (1), and is characterized in that a detection frame (2) is transversely installed on the frame body (1) in a sliding manner, a U-shaped frame (3) is vertically installed on the detection frame (2) in a sliding manner, a lifting rod (4) is vertically installed on two cantilevers of the U-shaped frame (3) in a sliding manner, a positioning device matched with the lifting rod (4) is arranged on the U-shaped frame (3), a rectangular cylinder (5) is vertically installed at the bottom of the lifting rod (4) in a sliding manner, a telescopic spring (6) is connected between the lifting rod and the rectangular cylinder (5), an unlocking device matched with the positioning device is arranged on the lifting rod (4), and when the unlocking device touches a part to be detected, the positioning of the positioning device is released;
the detection frame (2) is connected with a reciprocating transmission device arranged on the side wall of the frame body (1) and the reciprocating transmission device is driven by a transmission unit (11), and the reciprocating transmission device is matched with the transmission unit (11) to meet the requirements: the speed for driving the detection frame (2) to move can be higher than that of the transmission unit (11), a detection rod (7) is rotatably installed between the two rectangular cylinders (5), a plurality of detection wheels (8) arranged at intervals are installed on the detection rod (7) in a sliding mode along the radial direction of the detection rod, the detection wheels (8) are driven to be provided with a measuring device arranged on the detection rod (7), a detection spring (9) is connected between the detection wheel (8) and the detection rod (7), the measuring device is connected with a blocking mechanism which is arranged on the side wall of one rectangular cylinder (5) and matched with the unlocking device, and the blocking mechanism enables the blocking mechanism to act and lock the unlocking device when the measuring device detects that the part is unqualified;
support body (1) horizontal one side be equipped with transmission unit (11) complex clear away conveying unit (10), reciprocating transmission cooperatees with test rack (2) and satisfies: when the reciprocating transmission device drives the detection frame (2) to move to one end limit position, the detection wheels (8) pass through the part.
2. The automatic detection device for the cylindrical automobile parts according to claim 1, wherein arc-shaped rods (13) are integrally arranged on two transverse sides of the lifting rod (4), the positioning device comprises positioning rods which are longitudinally slidably mounted on a cantilever of the U-shaped frame (3), positioning springs (14) are connected between the positioning rods and the U-shaped frame (3), positioning holes (15) matched with the positioning rods are formed in the lifting rod (4), the unlocking device comprises unlocking plates (16) which are radially slidably mounted along the arc-shaped rods (13), unlocking springs (17) are connected between the unlocking plates (16) and the arc-shaped rods (13), and the unlocking rods are driven by an ejection connecting rod mechanism to be provided with ejection rods (18) which are longitudinally slidably mounted in the lifting rod (4) and are abutted to the positioning rods.
3. The automatic detection device for the cylindrical automobile parts as claimed in claim 2, wherein a plurality of sliding cavities (22) are circumferentially arranged on the detection rod (7) close to one of the rectangular cylinders (5) at intervals along the radial direction of the rectangular cylinder, the detection wheel (8) is slidably mounted in the corresponding sliding cavity (22), the detection wheel (8) drives a stroke amplification device arranged on the sliding cavity (22) and drives a measurement rod (26) slidably mounted on the side wall of the sliding cavity (22), the measurement rod (26) is provided with a conductive sheet (27), the side wall of the sliding cavity (22) is provided with a resistance sheet (28) in interference fit with the conductive sheet (27), the conductive sheet (27) and the resistance sheet (28) corresponding to the conductive sheet are commonly connected in series in the voltage stabilizing loop, an ammeter is connected in series in the voltage stabilizing loop, and the ammeter is electrically connected with a data processor.
4. The automatic cylindrical inspection device for automobile parts as claimed in claim 3, the measuring rod (26) is matched with an actuating rod (29) which is installed in a sliding mode along the length direction of the detecting rod (7), an actuating spring (30) is connected between the actuating rod (29) and the detecting rod (7), the other ends of the actuating rods (29) are matched with a circular ring (31) which is coaxially arranged with the detecting rod (7) and installed in a sliding mode, a return spring (72) is connected between the circular ring (31) and the detecting rod (7), a stop ring (32) is rotatably arranged on one side wall of the circular ring (31) with the same axis, the stop ring (32) drives a stop mechanism, the ring (31) is connected with a one-way transmission device arranged on the detection rod (7) and is separated from the ring (31) when the inspection frame moves to the initial position.
5. The automatic detection device for the cylindrical automobile parts is characterized in that the blocking mechanism comprises a blocking cylinder (33) which is rotatably installed on the side wall of the rectangular cylinder (5) far away from the plurality of sliding cavities (22), blocking rods (34) are installed at two ends in the blocking cylinder (33) in a sliding mode, one blocking rod (34) is rotatably installed with a blocking ring (32), the other blocking rod (34) is rotatably installed with a butting rod (35) which is slidably installed on the side wall of the rectangular cylinder (5), a butting spring (36) is connected between the butting rod (35) and the rectangular cylinder (5), and an unlocking plate (16) far away from the plurality of sliding cavities (22) and facing the sliding cavities (22) is integrally provided with a translation plate (37) which extends vertically and is matched with the butting rod (35).
6. The automatic detection device for the cylindrical automobile parts according to claim 5, wherein the reciprocating transmission device comprises a reciprocating pulley set (38) arranged on the side wall of the frame body (1), an L-shaped rod (39) is fixed on the pulley side wall of the reciprocating pulley set (38), a first gear (40) coaxially arranged with a pulley in the reciprocating pulley set (38) is fixedly arranged on the L-shaped rod (39), the first gear (40) is meshed with a second gear (41) rotatably arranged on the detection frame (2), the second gear (41) is driven by a meshing rod (42) rotatably arranged on the detection frame (2), the meshing rod (42) is matched with a transmission rod (43) rotatably arranged in a lifting rod (4) far away from the detection wheel (8), and the transmission rod (43) drives the detection rod (7) to rotate through a first worm gear (44), the L-shaped rod (39) is rotatably arranged between the position where the first gear (40) is arranged and the detection frame (2).
7. The automatic detection device for the cylindrical automobile parts is characterized in that a micro-toothed rod (48) is integrally arranged on the circular ring (31), the one-way transmission device comprises one-way rods (49) which are located on two longitudinal sides of the micro-toothed rod (48) and rotatably mounted on the detection rod (7), a torsion spring (50) is connected between the one-way rods (49) and the detection rod (7), third gears (51) are coaxially rotated with the one-way rods (49), the two third gears (51) are jointly meshed with a U-shaped rack (52) which is slidably mounted on the detection rod (7), a one-way spring (53) is connected between the U-shaped rack (52) and the detection rod (7), and a loosening device is matched with one end, far away from the circular ring (31), of the U-shaped rack (52).
8. The automatic detection device for the cylindrical automobile parts according to claim 7, wherein one end, away from the circular ring (31), of the U-shaped rack (52) is integrally provided with a loosening ring (54) which is coaxially arranged with the detection rod (7) and is slidably mounted with the detection rod, the loosening device comprises a abutting plate (55) which is vertically slidably mounted on the rectangular cylinder (5) and is matched with the loosening ring (54), a collision spring (56) is connected between the abutting plate (55) and the rectangular cylinder (5) and a protruding plate (57) is fixed on the abutting plate (55), a driving plate (58) matched with the protruding plate (57) and a loosening gear (59) which is rotatably mounted on the detection frame (2) are rotatably mounted on the rectangular cylinder (5), and a loosening rack (60) matched with the loosening gear (59) is arranged on the frame body (1).
CN202110506636.3A 2021-05-10 2021-05-10 Automatic detection device for cylindrical automobile parts Expired - Fee Related CN113210289B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN115371914A (en) * 2022-10-26 2022-11-22 济宁落陵春辉机械制造有限公司 Valve rod tightening air tightness experimental device

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CN106705801A (en) * 2017-01-06 2017-05-24 合肥工业大学 Three-jaw centering internal diameter measurement device and measurement method
CN111203393A (en) * 2020-03-12 2020-05-29 郑州科技学院 Detection device for intelligent manufacturing

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US5141111A (en) * 1990-10-22 1992-08-25 Ball Corporation System and method for inspecting and rejecting defective containers
CN103878124A (en) * 2012-12-21 2014-06-25 精工电子有限公司 Casing conveyer, casing classifier and casing conveying method
CN103672291A (en) * 2013-12-09 2014-03-26 成都科盛石油科技有限公司 Detection system installed on inner wall of pipeline
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