CN113188486A - Floating multi-point pressing mechanism and new energy automobile part detection device - Google Patents
Floating multi-point pressing mechanism and new energy automobile part detection device Download PDFInfo
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- CN113188486A CN113188486A CN202110500859.9A CN202110500859A CN113188486A CN 113188486 A CN113188486 A CN 113188486A CN 202110500859 A CN202110500859 A CN 202110500859A CN 113188486 A CN113188486 A CN 113188486A
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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
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/22—Measuring arrangements characterised by the use of fluids for measuring roughness or irregularity of surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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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
- G01B13/00—Measuring arrangements characterised by the use of fluids
Abstract
The invention belongs to the technical field of automobile parts and discloses a floating multi-point pressing mechanism and a new energy automobile part detection device. By adopting the scheme, the automobile spare and accessory parts with the proper center hole diameter can be positioned and clamped, and the application range is wide. And a plurality of pressure arms are laminated with the end face of the automobile spare part at a plurality of points and are compressed tightly, so that the height error caused by the end face deformation of the automobile spare part can be eliminated, and the machining precision and the detection precision of the automobile spare part are improved. And can follow from up to pass the automobile spare and accessory part and compress tightly the location, avoided processing and detecting the automobile spare and accessory part and caused space interference.
Description
Technical Field
The invention belongs to the technical field of automobile parts, and particularly relates to a floating multi-point pressing mechanism and a new energy automobile part detection device.
Background
In order to improve the assembling precision between the parts of the new energy automobile, the flatness of the assembling end face needs to be detected after the parts are produced. Or in order to improve the machining precision of the parts, for example, when the parts are subjected to turn-milling machining, the parts need to be accurately positioned, otherwise, the machining precision is affected.
When the automobile spare part with the center hole is fixedly positioned. Generally, a customized special clamp is adopted for clamping, so that the problem of high cost exists. Or as the Chinese patent with application number 201910171720.7, a floating pressing mechanism and a using method thereof are disclosed, a linear driving device is adopted, the pressing speed is high, the floating mechanism can be used for pressing the automobile parts from top to bottom, and the detection and the processing are convenient, but the pressing mode has the problems that the pressing mechanism is easy to generate space interference on the processing, and the positioning precision of the automobile parts is low.
Through the analysis of the prior art, the inventor finds that when the automobile parts with the central holes are clamped and the flatness is detected, the application range of clamping equipment is narrow, or the machining and detection precision of the automobile parts is low due to the interference of the clamping equipment or the positioning precision of the clamping equipment.
Disclosure of Invention
In view of the above, the present invention mainly provides a floating multi-point pressing mechanism and a new energy automobile part detection device, so as to solve the problems that the existing clamping and fixing of the parts with center holes is inconvenient, or the quality efficiency of the clamping and fixing is low, and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
the floating multi-point pressing mechanism is characterized by comprising a plurality of pressing arms, linear driving equipment for driving the pressing arms to move up and down, and a conversion structure matched with the linear driving equipment and used for increasing and reducing the unfolding areas of the pressing arms.
The principle and the effect of the technical scheme are as follows:
the linear driving device drives the conversion structure, when the expansion diameters of the plurality of pressure arms are reduced to be smaller than the diameter of the central hole of the automobile part, a part with the central hole to be processed can pass through and be supported on the supporting table below, then the linear driving device drives the pressure arm conversion structure, the expansion diameters of the plurality of pressure arms are increased to be larger than the central hole of the automobile part, then the linear driving device drives the pressure arms to move downwards until the pressure arms are attached to the end face of the automobile part, and the automobile part can be compressed.
Therefore, the automobile parts with the proper center hole diameter can be positioned and clamped, the application range is wide, the operation is convenient and quick, and the placement or the taking-out of parts to be processed or detected are particularly facilitated. And a plurality of pressure arms are laminated with the end face of the automobile spare part at a plurality of points and are compressed tightly, so that the height error caused by the end face deformation of the automobile spare part can be eliminated, and the machining precision and the detection precision of the automobile spare part are improved. And can follow from up to pass the automobile spare and accessory part and compress tightly the location, avoided processing and detecting the automobile spare and accessory part and caused space interference.
Preferably: the conversion structure comprises a flange fixedly connected to the linear driving device; the rotary pressing shafts are rotationally connected to the flange, distributed in an annular array along the circumferential direction of the flange and extend along the moving direction of the linear driving device; each rotary pressing shaft is provided with a guide groove, each guide groove comprises a first vertical section and a second vertical section positioned above the first vertical section, the horizontal directions of the first vertical section and the second vertical section have a spacing distance, and each guide groove further comprises a third arc-shaped section communicated with the first vertical section and the second vertical section;
the guide cylinders fixedly arranged relative to the linear driving equipment are arranged on the circumferential outer side of the rotary compression shaft, the guide cylinders are fixedly provided with guide columns in one-to-one correspondence with the guide grooves, and the guide columns are in sliding fit with the corresponding guide grooves;
the pressing arm is fixedly connected with one end of each rotary pressing shaft far away from the linear driving device and extends outwards horizontally along the radial direction of the rotary pressing shaft
The principle and the effect of the technical scheme are as follows:
when needing to compress tightly automobile spare and accessory part, drive the flange downstream by sharp drive arrangement, the flange drives many rotatory compact axle downstream together simultaneously, and the guide post will slide to the vertical section of second through the third segmental arc from the first vertical section of guide way, because the guide post is fixed by the guide cylinder, the guide post will promote rotatory compact axle rotation, and rotatory compact axle will drive the expansion diameter of a plurality of pressure arms of pressure arm to being greater than automobile spare and accessory part's centre bore. When the guide post slides to the second vertical section in, rotatory compressing shaft will stall, and the guide post continues upwards to slide along the vertical section of second, and according to the relative motion principle, rotatory compressing shaft drives the arm of pressing and slides downwards this moment, until pressing the arm down with automobile parts and compress tightly, is convenient for process and detect. The diameter of the surrounding of the rotary pressing shafts can be small on the basis of the existing mechanical manufacturing process, so that the rotary pressing shafts can penetrate through a small center hole, and automobile parts with small center holes can be pressed.
When needing to relieve automobile spare and accessory parts's compressing tightly, drive the flange upward movement by sharp drive device, the flange drives many rotatory compact axle upward movements together simultaneously, and the guide post will slide to first vertical section through the third segmental arc from the vertical section of second of guide way, because the guide post is fixed by the guide cylinder, the guide post will promote rotatory compact axle rotation, and rotatory compact axle will drive the expansion diameter that presses a plurality of pressure arms of arm and be less than automobile spare and accessory parts's centre bore. The automobile spare and accessory parts can be conveniently taken out. In this action, the guide post is seted up most and is slided downwards along the vertical section of second, and rotatory compress shaft drives earlier the relative automobile parts upward movement of pressure arm before taking place rotary motion this moment, and the terminal surface with automobile parts is scotched when avoiding a plurality of pressure arms to shrink when rotatory.
In the scheme, no matter the automobile parts are pressed or the pressing is released, all the actions only need to be provided by one linear driving device, and the effect of realizing multi-position actions by one power is achieved.
Preferably, the linear driving device is provided with an installation cylinder arranged along the length direction of the linear driving device, the flange is fixedly sleeved at the end part of the installation cylinder and is locked through a locking cap, the locking cap is positioned at one side of the flange facing the guide cylinder, a first gasket is sleeved on the installation cylinder and is positioned between the locking cap and the flange, and the first gasket is in spherical fit with the flange;
the rotary compression shaft is far away from one end of the compression arm penetrates through the flange, the end part of the rotary compression shaft is provided with an anti-falling nut, the anti-falling nut is located on one side, away from the locking cap, of the flange, a second gasket is further sleeved on the rotary compression shaft and located between the anti-falling nut and the flange, and the second gasket is in spherical fit between the flanges.
The principle and the effect of the technical scheme are as follows:
because the rotation is compressed tightly between axle and the flange and is connected, consequently rotatory compressed tightly axle all has certain clearance at vertical direction and horizontal direction relative flange, through the elasticity that first gasket and second gasket provided, and first gasket and second gasket all with the flange between the sphere cooperation, can eliminate a plurality of pressure arms that consequently the clearance caused and compress tightly height error and horizontal error to automobile parts.
Preferably, the number of the pressure arms is two, and each pressure arm comprises a joint part for pressing automobile parts and a hinge part integrally formed with the joint part;
the conversion structure comprises a shaft rod, the hinged parts of the two pressure arms are hinged with each other through the shaft rod, and the driving end of the linear driving device is fixedly connected with the shaft rod;
the conversion structure also comprises support rods fixedly connected to one end of each hinge part, which is far away from the joint part, and a first spring is fixedly connected between the two support rods;
the conversion structure further comprises a conversion column in sliding fit with the driving end of the linear driving device, one end, facing the fitting portion, of the conversion column is provided with guide inclined planes which are arranged in one-to-one correspondence with the two pressing arms, the guide inclined planes are in place from inside and are arranged obliquely downwards, and the lower ends of the pressing arms are in contact with the guide inclined planes corresponding to the pressing arms under the action of the first springs.
The principle and the effect of the technical scheme are as follows:
when will compressing tightly automobile spare part, drive the axostylus axostyle downstream by sharp drive device, the axostylus axostyle drives two articulated portions downstream, articulated portion will drive the bracing piece along guide inclined plane from last down sliding, the distance grow between two bracing pieces, tensile first spring, two articulated portions open for two laminating portions are at the in-process of downstream, the diameter after two laminating portions expand is greater than the diameter of automobile spare part centre bore, compress tightly with the laminating of automobile spare part until two laminating portions.
When the automobile parts need to be relieved from being compressed, the straight line driving equipment drives the shaft rod to move upwards, the shaft rod drives the two hinged parts to move upwards, the first spring provides elasticity to pull the two hinged parts towards the inner side, the distance between the two supporting rods is reduced, so that the two laminating parts are in the process of moving upwards, the diameter of the two laminating parts after being unfolded is smaller than that of the center hole of the automobile parts, and the automobile parts can be taken out conveniently. The action that two laminating parts moved up relatively to automobile spare and accessory parts takes place before two laminating parts inwards shrink, avoids the terminal surface scotch of automobile spare and accessory parts when laminating part shrink. Two laminating portions expand and go on with the downstream synchronization in this scheme, and this kind of structure is simpler relatively, the processing assembly of being convenient for.
Preferably, the conversion structure comprises a hollow outer cylinder; the conversion structure comprises a hollow outer cylinder; it is a plurality of the pressure arm articulates on the lateral wall of hollow urceolus, the both ends of pressure arm are located respectively the inboard and the outside of hollow urceolus, linear drive equipment's expansion end is with a plurality of the inner of pressure arm offsets with cambered surface structure, just be equipped with reset torsion spring between pressure arm and the hollow urceolus, the inner trend that has down the pivoted that has under the reset torsion spring effect of pressure arm.
The principle and the effect of the technical scheme are as follows: when the linear driving device drives the movable end to slide upwards, the pressure arm rotates relative to the hollow outer cylinder, the inner end of the pressure arm moves upwards, and the outer end of the pressure arm moves downwards until the outer end of the pressure arm presses the automobile parts. When the linear driving device drives the movable end to move downwards, resistance is not applied to the pressure arm any more, the pressure arm rotates under the action of the reset torsion spring, the outer end of the pressure arm rotates upwards to relieve the compression on automobile parts, and meanwhile, the pressure arm is retracted relatively, so that the occupied space of the pressure arm is reduced, and the parts can be conveniently taken out upwards.
On the basis, the invention provides a detection device for new energy automobile parts, which aims to solve the problems of troublesome clamping and fixing and low efficiency in the prior art during detection and processing of the parts, and the technical scheme is as follows:
the new energy automobile spare and accessory part detection device is characterized by comprising a support table and the floating multi-point pressing mechanism arranged on the support table, wherein the support table is provided with a plurality of hydraulic columns used for upwards abutting automobile spare and accessory parts;
still including seting up the inflation hole on the brace table to and with the air flue of inflation hole intercommunication, and with a plurality of air cocks of air flue intercommunication, it is a plurality of air cock evenly distributed is in the outside of floating multiple spot hold-down mechanism, each the gas outlet terminal surface of air cock flushes.
The principle and the effect of the technical scheme are as follows:
place automobile spare part on a supporting bench, up support to automobile spare part by many hydraulic pressure posts, compress tightly automobile spare part downwards by unsteady multiple spot hold-down mechanism, the lower terminal surface of centre bore department offsets with each air cock, then inject into gas through the gas charging hole, circulate to air cock gas outlet department through the air flue, hear air cock department and have obvious air current leakage sound so, show automobile spare part's centre bore terminal surface unevenness promptly, perhaps automobile spare part's positioning error big scheduling problem.
Preferably, a plurality of positioning columns are further fixed on the supporting platform. Scheme more than adopting is placing a supporting bench in-process with accessories, and accessible reference column carries out coarse positioning to it, places the touching and rotates or slide etc. the hold-down mechanism of being convenient for compresses tightly.
Preferably, the support table is further provided with an anti-rotation structure, and the upper end of the anti-rotation structure is provided with a V-shaped groove. When placing this accessories, the downward salient position on this accessories inserts in the V-arrangement groove, plays certain supporting role and can further prevent to rotate simultaneously, realizes the smart location of accessories.
Preferably, the anti-rotation structure comprises a base and a top column in sliding fit with the base, the V-shaped groove is located at the upper end of the top column, the top column is vertically arranged, a second spring is arranged between the bottom of the top column and the base, and two ends of the second spring are fixedly connected with the top column and the base respectively. During the use, when automobile parts inserted the V-arrangement inslot and down pushed down, the second spring was compressed in the base, can prevent to rotate, avoids the direct bearing of fore-set again, is favorable to increase of service life.
Preferably, an avoidance groove is formed in the support platform. The device is used for avoiding the irregular convex parts of the automobile parts.
Compared with the prior art, the invention has the beneficial technical effects that:
by adopting the floating multi-point pressing mechanism and the new energy automobile part detection device, the clamping and fixing of parts of the type can be quickly realized, the clamping and fixing quality, the operation efficiency and the like are improved, and particularly, the floating multi-point pressing mechanism has a better effect on the clamping and fixing of special parts in the new energy automobile in application and can improve the detection quality.
Drawings
FIG. 1 is a schematic view of the structure of an automobile part to be inspected;
FIG. 2 is an isometric view of FIG. 1;
fig. 3 is a schematic structural view of a new energy vehicle part detection device in a state in which a pressure arm is retracted inward in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of the new energy vehicle part detection apparatus of embodiment 1 of the present invention in a state in which the pressure arm is deployed;
fig. 5 is a schematic structural diagram of a new energy vehicle part detection device in embodiment 1 of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is a sectional view of an anti-rotation structure in an embodiment of the invention;
FIG. 8 is a schematic structural view of a floating multipoint pressing mechanism in embodiment 1 of the invention;
FIG. 9 is a partial structural view of a floating multipoint pressing mechanism in embodiment 1 of the invention;
fig. 10 is a sectional view of the floating multipoint pressing mechanism in embodiment 1 of the invention;
fig. 11 is a front view of a new energy vehicle parts detection apparatus according to embodiment 1 of the present invention;
fig. 12 is a top view of the new energy vehicle parts detection device in embodiment 1 of the invention;
figure 13 is a cross-sectional view of a support table in an embodiment of the present invention;
FIG. 14 is a schematic structural view showing the floating multipoint pressing mechanism in the state of releasing the pressing state of the automobile parts in embodiment 2 of the present invention;
fig. 15 is a schematic structural view of a floating multipoint pressing mechanism in the invention embodiment 2;
FIG. 16 is a schematic structural view of a floating multipoint pressing mechanism in embodiment 3 of the invention;
wherein: 100-new energy automobile spare and accessory part detection device, 1-floating multipoint pressing mechanism, 11-pressing arm, 111-attaching part, 112-hinging part, 12-air cylinder, 120-push plate, 13-conversion structure, 131-flange, 132-rotary pressing shaft, 133-guide groove, 1331-first vertical section, 1332-second vertical section, 1333-third arc section, 134-guide column, 135-guide cylinder, 136-locking cap, 137-first gasket, 138-second gasket, 139-shaft lever, 140-supporting rod, 141-first spring, 142-conversion column, 1421-guide inclined plane, 143-hollow outer cylinder, 1430-strip groove, 144-rotating shaft, 145-anti-falling nut, 2-supporting table, 3-hydraulic column, 4-an inflation hole, 5-an air passage, 6-an air nozzle, 7-a positioning column, 8-an anti-rotation structure, 81-a V-shaped groove, 82-a base, 83-a top column, 84-a second spring and 9-an avoidance groove;
200-automobile parts, 210-center hole, 220-flange, 230-first assembling protrusion, 240-end surface to be detected, 250-second transferring protrusion and 260-irregular protrusion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In order to better explain the structure of the present invention, first, refer to a new energy automobile part 200 shown in fig. 1 and 2, as shown in the figure, the automobile part 200 is a special-shaped structure, a central hole 210 is formed in the middle position, a flange 220 and an end face 240 to be detected are formed at positions corresponding to the central hole 210 on both sides of the thickness of the automobile part 200, the surfaces of the flange 220 and the end face 240 to be detected are perpendicular to the axis of the central hole 210, and a plurality of first assembling protrusions 230 are distributed on the outer edge of the automobile part 200; and a second fitting projection 250 provided on the automobile part 200 on a side remote from the flange 220, the automobile part 200 having an irregular projection 260 on a side remote from the flange 220.
When the automobile parts 200 are positioned and compressed and the flatness of the end surface 240 to be detected is detected, the following three embodiments are provided.
Example 1
Referring to fig. 1 to 13, the new energy automobile part detection device 100 includes a support table 2 for placing automobile parts 200 and a floating multi-point pressing mechanism 1 mounted on the support table 2 for pressing the automobile parts 200 downward.
Wherein, the multi-point hold-down mechanism 1 that floats includes a plurality of pressure arms 11 and the linear drive equipment of the up-and-down motion of a plurality of pressure arms 11 of drive, and linear drive equipment in this embodiment chooses for use cylinder 12, and cylinder 12 installs in the below of propping up a supporting bench 2, and the vertical upwards setting of piston rod of cylinder 12 has the via hole that just sets up cylinder 12 on propping up a supporting bench 2, still installs conversion architecture 13 on cylinder 12 for increase and reduce the expansion area of a plurality of pressure arms 11.
Referring to fig. 8 to 10, the conversion structure 13 includes a flange 131 fixedly connected to the cylinder 12 and a plurality of rotary pressing shafts 132 rotatably connected to the flange 131, specifically as shown in the figure, the linear driving device has a vertically upward mounting cylinder, the flange 131 is fixedly sleeved on the mounting cylinder, preferably, after the cylinder 12, the mounting cylinder is a piston rod of the cylinder 12, and the axis of the rotary pressing shaft 132 is parallel to the axis of the piston rod.
A plurality of rotary pressing shafts 132 penetrate through the support table 2 through the holes, and the plurality of rotary pressing shafts 132 are distributed in an annular array with the circle center of the flange 131 as a base point; each rotary compressing shaft 132 is provided with a guide groove 133, each guide groove 133 comprises a first vertical section 1331 and a second vertical section 1332 located above the first vertical section 1331, each of the first vertical section 1331 and the second vertical section 1332 has a spacing distance in the horizontal direction and the height direction, each of the first vertical section 1331 and the second vertical section 1332 extends along the length direction of the rotary compressing shaft 132, each guide groove 133 further comprises a third arc section 1333 communicating the first vertical section 1331 with the second vertical section 1332, as shown in the figure, the number of the rotary compressing shafts 132 in the application is three, the included angle between every two rotary compressing shafts is 120 °, and the corresponding arc angle of the third arc section 1333 on the rotary compressing shaft 132 is 90 °, namely, the included angle between the first vertical section 1331 and the second vertical section 1332 is 90 °.
The converting structure 13 further includes a guiding cylinder 135 located at the circumferential outer side of the rotating pressing shaft 132, the guiding cylinder 135 is provided with guiding posts 134 corresponding to the guiding slots 133, as shown in fig. 8 and 9, the guiding cylinder 135 is substantially a cylindrical structure and is fixedly connected to the supporting table 2 through bolts, the guiding cylinder 135 is provided with guiding holes facing the rotating pressing shaft 132 one by one, the guiding holes are through-hole structures penetrating through the upper and lower ends of the guiding cylinder 135 and have a size corresponding to the rotating pressing shaft 132, the upper end of the rotating pressing shaft 132 penetrates through the guiding holes and then penetrates through the upper end surface of the guiding cylinder 135, the guiding posts 134 are located in the guiding holes and are in sliding fit with the guiding slots 133, when the converting cylinder 135 is installed, the guiding posts 135 are fixed on the supporting table 2, the guiding posts 134 are fixedly connected to the guiding cylinder 135, when the rotating pressing shaft 132 slides along the length direction of the guiding holes under the external force, when the third arc-shaped section 1333 faces the guiding posts 134, the rotary hold down shaft 132 is synchronously rotationally constrained by relatively fixed guide posts 134.
Referring to fig. 8, in the present embodiment, the guide post 134 and the guide cylinder 135 are detachably connected, for example, a screw hole is formed on the guide cylinder 135 along a radial direction thereof, and the guide post 134 is installed therein in a screw-fit manner, so that the guide post 134 is convenient to install, and the guide post 134 is convenient to repair or replace at a later stage, thereby ensuring a good guiding effect.
The pressing arm 11 is fixedly arranged at the upper end part of the rotary pressing shaft 132, extends outwards along the radial direction of the rotary pressing shaft 132, is integrally arc-shaped, but the width of the pressing arm is gradually reduced along the direction far away from the rotary pressing shaft 132, so that the horizontal projection of the pressing arm 11 is in the shape of a taiji fish, and the pressing arm 11 adopting the shape has the advantages that in the non-pressing working state, the pressing arm 11 can be retracted inwards as shown in fig. 3 as far as possible, the occupied space is reduced, and when the pressing arm is unfolded, the pressing arm has a larger extension area, and the pressing arm is better suitable for parts with smaller central holes 210.
New energy automobile spare and accessory part detection device 100 is still including installing and being used for upwards supporting many hydraulic pressure posts 3 of holding automobile spare and accessory part 200 and the hydraulic pressure passageway of seting up in a supporting bench 2 on a supporting bench 2 and pressurize, and hydraulic pressure passageway links to each other with hydraulic pressure post 3, can synchronous control, directly sets up hydraulic pressure passageway simultaneously and can reduce the pipeline relatively on a supporting bench 2 and arrange, guarantees that the environment is clean and tidy.
Referring to fig. 12 and 13, the new energy automobile part detection device 100 further includes an inflation hole 4 formed in the support platform 2, an air passage 5 communicated with the inflation hole 4, and a plurality of air nozzles 6 communicated with the air passage 5, the plurality of air nozzles 6 are uniformly distributed on the outer side of the floating multi-point pressing mechanism 1, air outlets of the air nozzles are upward and flush with end surfaces of the air nozzles, and the air outlets of the air nozzles 6 are attached to the end surface 240 to be detected of the automobile part 200.
In practice, when the automobile parts 200 shown in fig. 1 and 2 are placed on the support platform 2, the air cylinder 12 is first activated, the piston rod drives the flange 131 to move upward, the flange 131 drives the plurality of rotating compressing shafts 132 to move upward together, because the guide posts 134 are in a relatively fixed posture, the guide slots 133 and the guide posts 134 slide relative to each other, when the guide posts 134 are located in the second vertical section 1332 and the first vertical section 1331, the rotating compressing shafts 132 only move linearly, when the guide posts 134 are located in the third arc section 1333, the corresponding rotating compressing shafts 132 can be driven to synchronously rotate and rotate, and the rotating angle of the rotating compressing shafts corresponds to the arc angle of the third arc section 1333.
As shown in fig. 3, when the piston rod of the cylinder 12 extends upward, the rotating pressing shaft 132 drives the pressing arm 11 to rotate clockwise, the pressing arm 11 is retracted, the expanded diameter of the pressing arm 11 is smaller than the central hole 210 of the auto part 200, so that the auto part 200 can be conveniently placed on the supporting table 2 or taken away from the supporting table without interfering with the pressing arm 11, during the placement process, the plurality of rotating pressing shafts 132 penetrate through the central hole 210 until the flange 220 of the auto part 200 is located below the pressing arm 11, and the hydraulic column 3 abuts against one side of the auto part 200 away from the flange 220.
Then the cylinder 12 is started to drive the flange 131 to move downwards, simultaneously the flange 131 drives the plurality of rotary pressing shafts 132 to move downwards together, the guide posts 134 and the guide grooves 133 slide relatively, the guide posts 134 slide from the first vertical section 1331 of the guide grooves 133 to the second vertical section 1332 through the third arc-shaped section 1333, due to the fact that the guide posts 134 are fixed relatively, when the guide posts slide relatively to the third arc-shaped section 1333, the guide posts 134 push the rotary pressing shafts 132 to rotate anticlockwise, as shown in fig. 4, the rotary pressing shafts 132 drive the pressing arms 11 to be unfolded, and the diameter of the unfolded parts is larger than that of the central hole 210 of the automobile part 200. Until the guide post 134 slides into the second vertical section 1332, the rotating pressing shaft 132 stops rotating, and the rotating pressing shaft 132 continues to slide downwards until the pressing arm 11 is tightly attached to the flange 220, so as to press the automobile part 200 downwards, which is convenient for processing and detection. Due to the special shape of the pressing arm 11 and the rotation driving structure of the rotary pressing shaft 132, the enclosing diameter of the pressing arm 11 can be small based on the existing mechanical manufacturing process, so that a plurality of rotary pressing shafts 132 can penetrate through a small central hole 210, and the automobile spare and accessory part 200 with a small central hole 210 can be pressed.
After compressing tightly, add gas through inflation hole 4, circulate to air cock 6 blowout through air flue 5, because air cock 6 is laminated with the terminal surface 240 that detects of auto parts 200, the sound of revealing of air current takes place in air cock 6 department, indicates that the terminal surface portion of auto parts 200 is uneven promptly, or the positioning error of auto parts 200 is big.
Specifically, referring to fig. 9 and 10, a locking cap 136 is fixed at an end of a piston rod of the cylinder 12, the piston rod has a mounting step corresponding to the flange 131, the locking cap 136 is located on one side of the flange 131 facing the guide cylinder 135, a first gasket 137 is sleeved on the piston rod, the first gasket 137 is located between the locking cap 136 and the flange 131, and the first gasket 137 is in spherical surface fit with the flange 131; the flange 131 is passed to the one end that rotatory pressing shaft 132 kept away from pressure arm 11, and threaded connection has anti-falling nut 145 on rotatory pressing shaft 132, and anti-falling nut 145 is located the one side that locking cap 136 was kept away from to flange 131, still overlaps on rotatory pressing shaft 132 to be equipped with second gasket 138, and second gasket 138 is located between anti-falling nut 145 and the flange 131, also adopts the sphere cooperation between second gasket 138 and the flange 131, and first gasket 137 and second gasket 138 are spherical washers promptly.
In this way, since the rotary pressing shaft 132 is rotatably connected to the flange 131, the rotary pressing shaft 132 has a certain tolerance gap in both the vertical direction and the horizontal direction with respect to the flange 131, and the first gasket 137 and the second gasket 138 provide elastic force, and the first gasket 137 and the second gasket 138 are in spherical fit with the flange 131, so that a height error and a horizontal error of the pressing arm 11 on the automobile parts 200 caused by the gap can be eliminated. The effect of improving the positioning, machining or detection accuracy of the automobile parts 200 is obtained.
Specifically, referring to fig. 3 to 5, a plurality of positioning posts 7 are further fixed on the support platform 2 for limiting the degree of freedom of the automobile parts 200 in the rotating direction.
During the implementation, reference column 7 is vertical upwards, when placing automobile parts 200 down on a supporting bench 2, will be located the laminating is aimed at in a plurality of first assembly of automobile parts 200 outward flange 230 and reference column 7's the outside, can play the effect of a thick location when placing, avoids automobile parts 200 random emergence horizontal direction's rotation when placing. Thereby improving the positioning accuracy of the automobile parts 200.
Specifically, referring to fig. 4 to 6, the support table 2 is further provided with an anti-rotation structure 8, and the upper end of the anti-rotation structure 8 is provided with a V-shaped groove 81.
In practice, the opening of the V-shaped groove 81 faces upward, and when the automobile part 200 is placed, the second fitting projection 250 is inserted in alignment with the V-shaped groove 81, and the degree of freedom of the automobile part 200 in the rotational direction is further precisely limited by the V-shaped groove 81, thereby improving the positioning accuracy of the automobile part 200.
Specifically, referring to fig. 4 to 6, the anti-rotation structure 8 includes a base 82 and a top pillar 83 slidably engaged with the base 82, the top pillar 83 faces upward vertically, a V-shaped groove 81 is formed at the upper end of the top pillar 83, a second spring 84 is disposed between the top pillar 83 and the base 82, and two ends of the second spring 84 respectively abut against the top pillar 83 and the base 82.
During implementation, the base 82 is fixed on the supporting table 2, a groove with an upward opening is formed in the base 82, the second spring 84 is fixedly installed in the groove, the bottom of the top column 83 is fixed with the second spring 84, the automobile part 200 clamping process is in the process that the second assembling protrusion 250 is inserted into the V-shaped groove 81 downwards, under the action of the second spring 84, the V-shaped groove 81 and the second assembling protrusion 250 are guaranteed to be kept in a clamping state, the automobile part 200 is prevented from rotating, and after the automobile part 200 is taken away, the top column 83 resets under the action of the second spring 84, the initial height is reached, and subsequent use is facilitated.
Referring to fig. 3, an avoiding groove 9 is further formed on the supporting platform 2. The irregular protrusions 260 of the automobile parts 200 can be avoided by the avoiding grooves 9.
Example 2
Referring to fig. 14 and fig. 15, compared with embodiment 1, the new energy automobile part detection device 100 provided in this embodiment has a difference in that a new floating multi-point pressing mechanism is adopted, which is specifically as follows:
the press arms 11 comprise attaching parts 111 for pressing the automobile parts 200 and hinge parts 112 integrally formed with the attaching parts 111, when in use, the hinge parts 112 penetrate through the central holes 210 of the automobile parts 200, and the number of the press arms 11 is two; the switching structure 13 comprises a shaft 139 for hinging the two pressure arms 11, and one end of the linear driving device is fixedly connected with the shaft 139; the converting structure 13 further includes a support rod 140 fixedly connected to an end of each hinge portion 112 away from the attaching portion 111, and a first spring 141 is fixedly connected between the two support rods 140.
The linear driving device in this embodiment is also preferably an air cylinder 12, a piston rod of the air cylinder 12 is provided with a switching column 142 in sliding fit with the air cylinder, as shown in the figure, the upper end of the switching column 142 is provided with two symmetrically arranged guide inclined planes 1421, the inner side of the guide inclined plane 1421 is higher than the outer side, the lower end of the pressure arm 11 is retracted under the action of the first spring 141 and is contacted with the corresponding guide inclined plane 1421, during installation, the air cylinder 12 and the switching column 142 are both fixedly connected with the support platform 2, and when the piston rod of the air cylinder 12 is vertically extended and retracted, under the combined action of the guide inclined plane 1421 and the first spring 141, the attaching part 111 is extended outwards or retracted inwards.
The specific process when the automobile part 200 is to be compacted is as follows: the driving shaft rod 139 of the cylinder 12 moves downward, the shaft rod 139 drives the two hinge portions 112 to move downward, the hinge portions 112 drive the supporting rods 140 to slide downward from the top along the guiding inclined planes 1421, the distance between the two supporting rods 140 is increased, the first spring 141 is stretched, and the two hinge portions 112 are opened, so that the diameter of the two attaching portions 111 after being unfolded is larger than that of the central hole 210 of the automobile part 200 in the downward movement process of the two attaching portions 111 until the two attaching portions 111 are attached to and pressed against the flange 220. Two laminating portions 111 expand and go on with the downstream synchronization in this scheme, compress tightly efficiently.
When the automobile parts 200 need to be released from being compressed, the cylinder 12 drives the shaft rod 139 to move upwards, the shaft rod 139 drives the two hinge parts 112 to move upwards, the first spring 141 provides elastic force to pull the two hinge parts inwards, the distance between the two support rods 140 is reduced, so that the diameter of the two attaching parts 111 after being unfolded is smaller than that of the central hole 210 of the automobile parts 200 in the process of moving upwards, and the automobile parts 200 can be taken out conveniently. The action of the two bonding portions 111 moving upward relative to the automobile part 200 occurs before the two bonding portions 111 contract inward, and the end faces of the automobile part 200 are prevented from being scratched when the bonding portions 111 contract.
Example 3
Referring to fig. 16, compared with embodiment 1, the new energy automobile part detection device 100 provided in this embodiment has a difference in that another new floating multi-point pressing mechanism is adopted, which is specifically as follows:
the conversion structure 13 comprises a hollow outer cylinder 143 capable of penetrating through the central hole 210 of the automobile part 200, when in use, the hollow outer cylinder 143 is fixedly arranged on the support table 2, the plurality of pressure arms 11 are hinged on the side wall of the hollow outer cylinder 143 through a rotating shaft 144, as shown in the figure, two ends of each pressure arm 11 are respectively positioned at the inner side and the outer side of the hollow outer cylinder 143, meanwhile, a reset torsion spring (not shown) is sleeved on the rotating shaft 144, two ends of each reset torsion spring respectively act on the rotating shaft 144 and the hollow outer cylinder 143, and the inner end (the end positioned inside the hollow outer cylinder 143) of each pressure arm 11 has a downward rotation tendency.
The linear driving device is preferably a cylinder 12, in this embodiment, the end of the piston rod is provided with a push plate 120 with an upward arc surface, the inner end of the pressing arm 11 is provided with an arc-shaped protrusion, the protrusion is in arc surface contact with the push plate 120, and the inner end of the pressing arm 11 is always in contact with the upper surface of the push plate 120 under the action of the reset torsion spring.
In the practical application process, in order to ensure that the pressing arm 11 has a large rotating space, the length of the pushing plate 120 is adapted to the inner diameter of the hollow outer cylinder 143, and meanwhile, a vertically-arranged strip-shaped groove 1430 is arranged on the side wall of the hollow outer cylinder 120 corresponding to the pressing arm 11, so that the pressing arm 11 can rotate to the position where the outer end of the pressing arm is close to the outer wall of the hollow outer cylinder 143 as far as possible, the occupied space is reduced, and the interference in the clamping or taking and placing of parts is prevented.
In operation, when the push plate 120 is driven by the cylinder 12 to slide upward relative to the hollow outer cylinder 143, the inner end of the pressing arm 11 is abutted, so that the pressing arm 11 rotates relative to the hollow outer cylinder 143, and the outer end of the pressing arm 11 rotates downward to contact and abut the flange 220. On the contrary, when the cylinder 12 drives the push plate 120 to slide downward relative to the hollow outer cylinder 143, an effective space is provided for downward rotation of the inner end of the press arm 11, and simultaneously, the inner end of the press arm 11 rotates downward and the outer end rotates upward under the action of the reset torsion spring, so that the automobile parts 200 are released from being pressed, the transverse occupied space of the press arm 11 is also reduced, and the parts can be conveniently taken and placed.
It should be noted that the three floating multi-point pressing mechanisms can be applied to other various machining devices besides the new energy automobile part detection device provided by the application, in particular to a part with a structure similar to the central hole 210 in the middle.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The technology, the shape and the construction part which are not described in detail in the invention are all in the scope of the claims of the invention of the known technology. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The utility model provides a multiple spot hold-down mechanism floats which characterized in that: the device comprises a plurality of pressure arms, linear driving equipment for driving the pressure arms to move up and down, and a conversion structure matched with the linear driving equipment and used for increasing and reducing the expansion area of the pressure arms.
2. The floating multi-point compaction mechanism of claim 1, wherein: the conversion structure comprises a flange fixedly connected to the linear driving device;
the rotary pressing shafts are rotationally connected to the flange, distributed in an annular array along the circumferential direction of the flange and extend along the moving direction of the linear driving device; each rotary pressing shaft is provided with a guide groove, each guide groove comprises a first vertical section and a second vertical section positioned above the first vertical section, the horizontal directions of the first vertical section and the second vertical section have a spacing distance, and each guide groove further comprises a third arc-shaped section communicated with the first vertical section and the second vertical section;
the guide cylinders fixedly arranged relative to the linear driving equipment are arranged on the circumferential outer side of the rotary compression shaft, the guide cylinders are fixedly provided with guide columns in one-to-one correspondence with the guide grooves, and the guide columns are in sliding fit with the corresponding guide grooves;
and the pressing arm is fixedly connected to one end, far away from the linear driving device, of each rotary pressing shaft and extends outwards horizontally along the radial direction of the rotary pressing shaft.
3. The floating multi-point compaction mechanism of claim 2, wherein: the linear driving device is provided with an installation cylinder arranged along the length direction of the linear driving device, the flange is fixedly sleeved at the end part of the installation cylinder and locked through a locking cap, the locking cap is positioned on one side, facing the guide cylinder, of the flange, a first gasket is sleeved on the installation cylinder, the first gasket is positioned between the locking cap and the flange, and the first gasket is in spherical fit with the flange;
the rotary compression shaft is far away from one end of the compression arm penetrates through the flange, the end part of the rotary compression shaft is provided with an anti-falling nut, the anti-falling nut is located on one side, away from the locking cap, of the flange, a second gasket is further sleeved on the rotary compression shaft and located between the anti-falling nut and the flange, and the second gasket is in spherical fit between the flanges.
4. The floating multi-point compaction mechanism of claim 1, wherein: the number of the pressure arms is two, and the pressure arms comprise attaching parts for pressing automobile parts and hinging parts integrally formed with the attaching parts;
the conversion structure comprises a shaft rod, the hinged parts of the two pressure arms are hinged with each other through the shaft rod, and the driving end of the linear driving device is fixedly connected with the shaft rod;
the conversion structure also comprises support rods fixedly connected to one end of each hinge part, which is far away from the joint part, and a first spring is fixedly connected between the two support rods;
the conversion structure further comprises a conversion column in sliding fit with the driving end of the linear driving device, one end, facing the fitting portion, of the conversion column is provided with guide inclined planes which are arranged in one-to-one correspondence with the two pressing arms, the guide inclined planes are in place from inside and are arranged obliquely downwards, and the lower ends of the pressing arms are in contact with the guide inclined planes corresponding to the pressing arms under the action of the first springs.
5. The floating multi-point compaction mechanism of claim 1, wherein: the conversion structure comprises a hollow outer cylinder; it is a plurality of the pressure arm articulates on the lateral wall of hollow urceolus, the both ends of pressure arm are located respectively the inboard and the outside of hollow urceolus, linear drive equipment's expansion end is with a plurality of the inner of pressure arm offsets with cambered surface structure, just be equipped with reset torsion spring between pressure arm and the hollow urceolus, the inner trend that has down the pivoted that has under the reset torsion spring effect of pressure arm.
6. The utility model provides a new energy automobile spare and accessory part detection device which characterized in that: the floating multipoint pressing mechanism is arranged on the supporting platform and is as claimed in claims 1 to 5, and a plurality of hydraulic columns used for upwards abutting against automobile parts are arranged on the supporting platform;
still including seting up the inflation hole on the brace table to and with the air flue of inflation hole intercommunication, and with a plurality of air cocks of air flue intercommunication, it is a plurality of air cock evenly distributed is in the outside of floating multiple spot hold-down mechanism, each the gas outlet terminal surface of air cock flushes.
7. The new energy automobile spare and accessory part detection device of claim 6, wherein: and a plurality of positioning columns are also fixed on the supporting platform.
8. The new energy automobile spare and accessory part detection device of claim 7, wherein: an anti-rotation structure is further arranged on the support table, and a V-shaped groove is formed in the upper end of the anti-rotation structure.
9. The new energy automobile spare and accessory part detection device of claim 8, wherein: the anti-rotation structure comprises a base and a top column in sliding fit with the base, the V-shaped groove is located at the upper end of the top column, the top column is vertically arranged, a second spring is arranged between the bottom of the top column and the base, and two ends of the second spring are fixedly connected with the top column and the base respectively.
10. The new energy automobile spare and accessory part detection device of claim 9, wherein: the support table is provided with an avoiding groove.
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|---|---|---|---|
| CN202110500859.9A CN113188486B (en) | 2021-05-08 | 2021-05-08 | Floating multi-point pressing mechanism and new energy automobile part detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500859.9A CN113188486B (en) | 2021-05-08 | 2021-05-08 | Floating multi-point pressing mechanism and new energy automobile part detection device |
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| CN113188486A true CN113188486A (en) | 2021-07-30 |
| CN113188486B CN113188486B (en) | 2022-02-15 |
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| EP0521271A1 (en) * | 1991-07-04 | 1993-01-07 | Ott Maschinentechnik GmbH i.K. | Hydraulically actuated swing clamp |
| CN203611169U (en) * | 2013-12-11 | 2014-05-28 | 天津市立德尔机械设备有限公司 | Macro-porous positioning and locking device |
| CN104646894A (en) * | 2014-06-10 | 2015-05-27 | 上海汇众汽车制造有限公司 | Multipoint orientation and pressed interlocking mechanism |
| CN105269211A (en) * | 2015-11-20 | 2016-01-27 | 重庆天人汽车车身制造有限公司 | Liner tube pressing mechanism |
| CN206200454U (en) * | 2016-11-26 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | A kind of dead point formula hold-down mechanism |
| CN210452472U (en) * | 2019-08-22 | 2020-05-05 | 苏州晨创智能科技有限公司 | Pressing mechanism for automobile gear shifting device |
| CN211728875U (en) * | 2019-12-27 | 2020-10-23 | 武汉德恒汽车装备有限公司 | Floating flexible pressing mechanism |
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2021
- 2021-05-08 CN CN202110500859.9A patent/CN113188486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0521271A1 (en) * | 1991-07-04 | 1993-01-07 | Ott Maschinentechnik GmbH i.K. | Hydraulically actuated swing clamp |
| CN203611169U (en) * | 2013-12-11 | 2014-05-28 | 天津市立德尔机械设备有限公司 | Macro-porous positioning and locking device |
| CN104646894A (en) * | 2014-06-10 | 2015-05-27 | 上海汇众汽车制造有限公司 | Multipoint orientation and pressed interlocking mechanism |
| CN105269211A (en) * | 2015-11-20 | 2016-01-27 | 重庆天人汽车车身制造有限公司 | Liner tube pressing mechanism |
| CN206200454U (en) * | 2016-11-26 | 2017-05-31 | 安徽江淮汽车集团股份有限公司 | A kind of dead point formula hold-down mechanism |
| CN210452472U (en) * | 2019-08-22 | 2020-05-05 | 苏州晨创智能科技有限公司 | Pressing mechanism for automobile gear shifting device |
| CN211728875U (en) * | 2019-12-27 | 2020-10-23 | 武汉德恒汽车装备有限公司 | Floating flexible pressing mechanism |
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| CN113188486B (en) | 2022-02-15 |
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