CN111872313A - Coaxiality correcting device for vehicle frame lifting lug support - Google Patents
Coaxiality correcting device for vehicle frame lifting lug support Download PDFInfo
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- CN111872313A CN111872313A CN202010740827.1A CN202010740827A CN111872313A CN 111872313 A CN111872313 A CN 111872313A CN 202010740827 A CN202010740827 A CN 202010740827A CN 111872313 A CN111872313 A CN 111872313A
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- lifting lug
- coaxiality
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
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Abstract
The invention discloses a coaxiality correcting device of a frame lifting lug support, which comprises a base, a right caliper, a left caliper and a correcting mechanism, wherein the base extends in the left-right direction, and a through hole is formed in the base; the right caliper is arranged at the right end of the base and extends along the vertical direction to be clamped with the right side of the frame; the left caliper is connected with the left end of the base and can rotate left and right to be clamped with the left side of the frame; the correcting mechanism comprises a moving rod which is arranged on the base and extends along the vertical direction, the moving rod penetrates through the through hole and is movably arranged along the vertical direction, one end of the moving rod, which is far away from the base, is provided with a correcting block, and the correcting block is used for being sleeved on the periphery of the correcting core rod so as to drive the correcting core rod to move up and down under the driving of the moving rod. The correcting device provided by the invention can be used for correcting the deviation of the coaxiality of the frame lifting lug support in the upper and lower directions, and the problem that the upward deviation of the coaxiality of the conventional lifting lug support cannot be corrected is solved.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to a coaxiality correction device for a vehicle frame lifting lug support.
Background
The frame is a basic part of the light truck chassis, and is connected with the steel plate spring through 8 lifting lug supports on the front, the rear, the left and the right, so that the frame and the chassis part are connected into a whole through the suspension, the front axle and the rear axle. In the frame production process, the coaxiality precision of the left and right lifting lug supports is taken as an important management and control index, and because the assembly of the left and right plate springs and the front and rear axles is directly influenced by the coaxiality precision of the lifting lug supports, the running stability of the whole vehicle can be improved due to the high coaxiality precision of the lifting lug supports, and certain influence is caused on the deviation of the vehicle and the left and right height difference of the vehicle.
In order to ensure the coaxiality precision of the lifting lug support, the longitudinal beam hole position precision is improved by putting a longitudinal beam punching die into the process, and the lifting lug support hole position precision is improved by putting a numerical control processing machine tool into the process. However, with the personalized requirements of accelerated updating speed and various small batches of vehicle types, the hole positions of the longitudinal beam change frequently, the investment in large-scale punching dies is large, the period is long, and the market requirements cannot be met, so that the longitudinal beam adopts more numerical control punching process modes, and the hole position precision is lower than that of die punching. When the frame is riveted, the riveting guide pin is additionally arranged on the riveting clamp by utilizing the original hole position of the longitudinal beam, and the front and back deviation of the longitudinal beam in the length direction is controlled, so that the coaxiality precision of the left and right lifting lug supports in the front and back directions is ensured, but the coaxiality deviation of the left and right lifting lug supports in the up and down directions can only be ensured by the single precision of parts and components, and no effective control measure exists.
The existing correction mode is generally that a hydraulic cylinder props against left and right lifting lug supports along the width direction of a frame, and correction is carried out through the expansion and contraction of the hydraulic cylinder. However, this kind of correction method is only suitable for downward deviation of the left and right shackle brackets, cannot correct upward deviation, cannot visually correct the effect, is not good in grasping the correction amount, and is very inefficient when correcting once for one measurement.
Disclosure of Invention
The invention mainly aims to provide a coaxiality correction device for a vehicle frame lifting lug support, which aims to solve the problem that the upward deviation of the coaxiality of the lifting lug support cannot be corrected, and improve the correction effect and efficiency.
In order to achieve the above object, the present invention provides a coaxiality correction apparatus for a vehicle frame lifting lug support, comprising:
the base extends in the left-right direction and is provided with a through hole;
the right caliper is arranged at the right end of the base, extends along the vertical direction and is used for being clamped with the right side of the frame;
the left caliper is connected with the left end of the base, can rotate left and right and is used for being clamped with the left side of the frame; and the number of the first and second groups,
the correcting mechanism comprises a moving rod arranged on the base and extending along the upper direction and the lower direction, the moving rod penetrates through the through hole and is movably arranged along the upper direction and the lower direction, a correcting block is arranged at one end, away from the base, of the moving rod, and the correcting block is used for being sleeved on the periphery of the correcting core rod and driving the correcting core rod to move up and down under the driving of the moving rod.
Optionally, the base includes a fixed plate, a cross beam and a longitudinal beam, the fixed plate has a front end and a rear end which are oppositely arranged, the via hole is formed in the fixed plate, the cross beam includes two cross beams extending in the left-right direction, the two cross beams are correspondingly disposed at the front end and the rear end of the fixed plate, the longitudinal beam includes a left longitudinal beam and a right longitudinal beam extending in the front-back direction, the left longitudinal beam is connected with the left ends of the two cross beams, and the right longitudinal beam is connected with the right ends of the two cross beams;
the two right calipers are correspondingly and respectively arranged at the right ends of the two cross beams;
the left calipers are provided with two calipers, and the two calipers are correspondingly arranged at the left ends of the two cross beams.
Optionally, a right caliper main body extending downwards is arranged at the right end of each cross beam, two first protrusions extending towards the left are arranged on the right caliper main body, and the two first protrusions are distributed at intervals along the vertical direction to form a right clamping groove used for clamping the right side of the frame;
each left side calliper includes along the left calliper main part of upper and lower to extending, the upper end of left side calliper main part with one the left end of crossbeam is rotated and is connected, left side calliper main part orientation one side of right side calliper is equipped with two second archs, two the second arch is followed from top to bottom interval distribution to form and be used for the left joint groove of joint frame.
Optionally, a first mounting hole is formed in the left end of each cross beam, a second mounting hole is formed in the upper end of each left caliper body, and the second mounting holes are used for being matched with the first mounting holes to enable screw connectors to penetrate through.
Optionally, the coaxiality correction device of the vehicle frame lifting lug support further comprises a locking structure, and the locking structure comprises:
the lock catch supporting beam extends in the front-back direction, and two ends of the lock catch supporting beam are correspondingly connected with the two left caliper main bodies; and the number of the first and second groups,
the hasp pole has the both ends of relative setting, the one end of hasp pole with a hasp supporting beam is connected, and the other end is equipped with the draw-in groove, the draw-in groove be used for with left side longeron joint.
Optionally, the fixing plate and the cross beam are fixed by welding; and/or the cross beam and the longitudinal beam are fixedly welded; and/or the cross beam and the right caliper body are fixedly welded.
Optionally, the correcting mechanism further comprises a hydraulic oil cylinder, the hydraulic oil cylinder comprises a hydraulic oil cylinder body and a piston rod, the hydraulic oil cylinder body is fixedly mounted on the base, and the piston rod is movably arranged in the through hole in a penetrating mode in the vertical direction so as to form the moving rod.
Optionally, the correcting block is provided with a connecting column towards one end of the moving rod, and the connecting column is provided with an internal thread for being in threaded connection with the connecting rod.
Optionally, the correcting block is provided with a slot which penetrates through the left end and the right end of the correcting block and has a backward opening, and the upper wall surface and/or the lower wall surface of the slot are arc surfaces matched with the shape of the correcting core rod.
According to the technical scheme, the coaxiality correction device of the frame lifting lug support comprises a base, a left caliper, a right caliper and a correction mechanism, the left caliper and the right caliper are used for clamping the coaxiality correction device of the frame lifting lug support with the left side and the right side of a frame, the mechanism comprises a movable rod and a correction block which can move in the vertical direction, the correction block is sleeved on the periphery of a correction core rod and drives the correction block to move up and down by the aid of the movable rod, and then the correction core rod is driven to move up and down, so that deviation correction of the coaxiality of the frame lifting lug support in the upward direction and the downward direction can be completed, the problem that the coaxiality deviation of the existing lifting lug support in the upward direction cannot be corrected is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coaxiality correction device of a frame lifting lug support, provided by the invention, when the device is fixed to a frame to be detected;
FIG. 2 is another angular view of FIG. 1;
FIG. 3 is a further angular view of FIG. 1;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a schematic structural view of the base and the right caliper of FIG. 1;
FIG. 6 is a schematic structural view of the left caliper shown in FIG. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The coaxiality correcting mechanism of the existing lifting lug support is characterized in that a correcting jacking block is fixed at two ends of a piston rod of a bidirectional hydraulic cylinder. Before correction, the deviation of the lifting lug support in the height direction needs to be detected by using a special core rod, and if the deviation of the axis of the lifting lug support hole is towards a downward countersunk head, the correction is carried out through the movement of the piston rod of the hydraulic cylinder in the horizontal direction. Such a correction mechanism has the following problems: (1) the problem of downward deviation of the coaxiality of the lifting lug support can be only corrected, and if the downward deviation exists, the downward deviation cannot be corrected; (2) before correction, a special core rod is needed for detection, and the operation is troublesome because the detection is performed once after the correction; (3) the correction process has no reference object, and the correction is easy to be excessive; (4) when the correction is carried out, the left lifting lug and the right lifting lug are required to be simultaneously jacked, and the deviation is generated on the lifting lug support on one side without the original coaxiality deviation due to improper operation; (5) the alignment may increase the width dimension of the frame, resulting in an out of tolerance frame width and shackle bracket suspension.
In view of this, the present invention provides a coaxiality correction device for a vehicle frame lifting lug support, and fig. 1 to 6 show an embodiment of the coaxiality correction device for a vehicle frame lifting lug support provided by the present invention, wherein the coaxiality correction device 100 for a vehicle frame lifting lug support is used for correcting the coaxiality of a vehicle frame lifting lug support 201 of a vehicle frame 200 to be detected. Specifically, referring to fig. 1 to 3, in this embodiment, the coaxiality calibration apparatus 100 for a vehicle frame lifting lug support includes a base 10, a right caliper 20, a left caliper 30, and a calibration mechanism, wherein the base 10 extends in a left-right direction, and a through hole 111 is formed in the base 10; the right caliper 20 is arranged at the right end of the base 10 and extends in the vertical direction to be clamped with the right side of the frame 200; the left caliper 30 is connected with the left end of the base 10 and can rotate left and right to be clamped with the left side of the frame 200; the correcting mechanism comprises a moving rod which is arranged on the base 10 and extends along the vertical direction, the moving rod penetrates through the through hole 111 and is movably arranged along the vertical direction, a correcting block 41 is arranged at one end, far away from the base 10, of the moving rod, and the correcting block 41 is used for being sleeved on the periphery of a correcting mandril 300 (penetrating through a lifting lug support of the frame 200 and used for detecting the coaxiality state and correcting), so that the correcting mandril 300 is driven to move up and down by the moving rod.
In the technical scheme provided by the invention, the coaxiality correction device 100 of the vehicle frame lifting lug support comprises a base 10, a left caliper 30, a right caliper 20 and a correction mechanism, wherein the left caliper 30 and the right caliper 20 are used for clamping the coaxiality correction device 100 of the vehicle frame lifting lug support with the left side and the right side of a vehicle frame 200, the mechanism comprises a movable rod and a correction block 41 which can move along the vertical direction, the correction block 41 is sleeved on the periphery of a correction core rod 300, the movable rod is used for driving the correction block 41 to move up and down and further driving the correction core rod 300 to move up and down, so that the deviation correction of the coaxiality of the vehicle frame lifting lug support 201 in the upward and downward directions can be completed, the problem that the coaxiality deviation of the existing lifting lug support in the upward direction can not.
In this embodiment, referring to fig. 1 and 5, the base 10 includes a fixed plate 11, a cross beam 12 and a longitudinal beam, the fixed plate 11 has a front end and a rear end that are oppositely disposed, the via hole 111 is provided in the fixed plate 11, the cross beam 12 includes two cross beams 12 that extend in the left-right direction, the two cross beams 12 are correspondingly provided at the front end and the rear end of the fixed plate 11, the longitudinal beam includes a left longitudinal beam 13 and a right longitudinal beam 14 that extend in the front-back direction, the left longitudinal beam 13 is connected to the left ends of the two cross beams 12, and the right longitudinal beam 14 is connected to the right ends of the two cross beams 12; the number of the right calipers 20 is two, and the two right calipers 20 are correspondingly arranged at the right ends of the two cross beams 12; the left calipers 30 are provided with two, and the two left calipers 30 are correspondingly arranged at the left ends of the two cross beams 12. So, through two right calliper 20 and two left calliper 30 joint respectively waits to detect the right side and the left side of frame 200 for the installation of frame lifting lug support's axiality correcting unit 100 is more stable, and the correction effect is more reliable.
Further, the connection between the fixing plate 11 and the cross beam 12, the connection between the cross beam 12 and the longitudinal beam, and the connection between the cross beam 12 and the right caliper 20 may be fixed connection manners such as welding or clamping, and may also be formed by integrally designing components that need to be fixedly connected. In this embodiment, the fixing plate 11 and the cross beam 12 are fixed by welding; and/or the cross beam 12 and the longitudinal beam are welded and fixed; and/or, the beam 12 with the right caliper body 21 is welded and fixed, and the welding and fixing mode is adopted, so that the machining process is simpler, and the structure is stable and reliable. Specifically, in this embodiment, the steel sheet of thickness 15mm is selected for use to the fixed plate 11, crossbeam 12 and longeron are the U type section bar of thickness 5mm, and the section bar can be under the prerequisite of guaranteeing that the component has enough structural strength, reduces the use amount of component raw and other materials, reduces product cost, and concrete course of working can be first two crossbeam 12 with fixed plate 11 welds, again with two the longeron with crossbeam 12 welds, forms promptly base 10, then with two right calliper 20 respectively with two crossbeam 12 corresponds the welding.
The right caliper 20 and the left caliper 30 are respectively clamped on the right side and the left side of the frame 200 to be detected in multiple modes, clamping grooves matched with the right side and the left side of the frame 200 in shape can be respectively formed in the right caliper 20 and the left caliper 30, and clamping hooks can also be respectively formed in the right caliper 20 and the left caliper 30. In this embodiment, referring to fig. 1, fig. 2 or fig. 5, a right caliper main body 21 extending downward is disposed at the right end of each cross beam 12, two first protrusions 22 extending leftward are disposed on the right caliper main body 21, and the two first protrusions 22 are distributed at intervals along the vertical direction to form a right clamping groove for clamping the right side of the frame 200; each left side calliper 30 includes along the left calliper main part 31 of vertical extension, the upper end of left side calliper main part 31 with one the left end of crossbeam 12 is rotated and is connected, left side calliper main part 31 orientation one side of right side calliper 20 is equipped with two protruding 32 of second, two protruding 32 of second is along vertical interval distribution to form and be used for the left joint groove of joint frame 200. So, through setting up two first arch 22 forms the right joint groove for joint frame 200 right side, sets up two the protruding 32 of second forms the left joint groove for joint frame 200 left, compares in the mode of seting up the recess, and is right the fixed effect of joint of frame 200 is more firm. Further, in this embodiment, the right caliper 20 and the left caliper 30 may also be made by welding U-shaped sections with a thickness of 5mm, and the usage amount of raw materials of the components may also be reduced on the basis of ensuring the structural strength.
When the coaxiality correction device 100 of the frame lifting lug support provided by the embodiment of the invention is used for detection, the left caliper 30 is firstly turned over and opened, the right caliper 20 clamps the right side of the frame 200 to be detected, then the left caliper 30 is rotated to clamp the left side of the frame 200 to be detected, and then the left caliper 30 is locked. In the present embodiment, referring to fig. 1, 5 and 6, the locking manner of the left caliper 30 may be: the left end of each beam 12 of the right caliper 20 is provided with a first mounting hole 121, the upper end of each left caliper body 31 is provided with a second mounting hole 311, and the second mounting holes 311 are used for being matched with the first mounting holes 121 so as to allow a screw to penetrate through. Specifically, one end of the screw member abuts against the hole edge of the second mounting hole 311, and the other end is provided with a thread for cooperating with a nut, thereby fastening the upper end of the left caliper 30. When the left caliper 30 is installed, the second installation hole 311 on the left caliper 30 is aligned with the first installation hole 121 on the cross beam 12, and then the screw is inserted and screwed, so that the left caliper 30 is installed.
Further, the coaxiality correcting device 100 of the vehicle frame lifting lug support further comprises a locking structure, as shown in fig. 1 and 4, the locking structure comprises a locking support beam 51 and a locking rod 52, the locking support beam 51 extends in the front-back direction, and two ends of the locking support beam 51 are correspondingly connected with the two left caliper main bodies 31; the lock catch rod 52 is provided with two opposite ends, one end of the lock catch rod 52 is connected with the lock catch supporting beam 51, and the other end of the lock catch rod 52 is provided with a clamping groove which is used for being clamped with the left longitudinal beam 13. Through the setting of hasp structure, can prevent at the alignment process, left caliper 30 takes place the circumstances such as not hard up, has improved to the fastening effect of left caliper 30 has improved the detection reliability of frame lifting lug support's axiality correcting unit 100.
Specifically, the lock catch support beam 51 and the lock catch are respectively provided with an installation through hole for a bolt to penetrate through, so that the lock catch rod 52 and the lock catch support beam 51 are connected through the bolt, during installation, the lock catch is firstly placed on the lock catch support beam 51, the installation through holes of the lock catch rod and the lock catch support beam 51 are aligned, then the bolt is inserted, after the clamping groove in the lock catch rod 52 is clamped with the left longitudinal beam 13, the bolt is screwed to fix the lock catch rod 52, and then the installation of the lock catch is completed, that is, the locking and fixing of the coaxiality correction device 100 of the vehicle frame lifting lug support are completed. Furthermore, the lock catch rod 52 and the lock catch support beam 51 may be fixedly connected or rotatably connected, the lock catch rod 52 may be rotatably disposed in the left-right direction, when the coaxiality correction device 100 of the frame lifting lug support needs to be locked, the lock catch rod 52 is rotated to the clamping groove to be clamped with the left longitudinal beam 13, then the bolt is tightened to fix the lock catch rod 52, when the coaxiality correction device 100 of the frame lifting lug support does not need to be locked, for example, when the correction device needs to be disassembled after the correction is completed, the bolt is loosened to the lock catch rod 52 to be rotatable, and the lock catch rod 52 is rotated to the clamping groove to be separated from the left longitudinal beam 13.
In this embodiment, referring to fig. 1 and 4, the manner of moving the moving rod up and down is implemented as follows: the correcting mechanism further comprises a hydraulic oil cylinder 43, the hydraulic oil cylinder 43 comprises a hydraulic oil cylinder body 431 and a piston rod 432, the hydraulic oil cylinder body 431 is fixedly installed on the base 10, and the piston rod 432 is movably arranged in the through hole 111 in a penetrating mode in the vertical direction to form the moving rod. When the coaxiality correcting device 100 of the frame lifting lug support is used, the device is generally suspended on a moving track of a production line, an oil inlet pipeline and an oil outlet pipeline of the hydraulic oil cylinder 43 are connected, the correcting block 41 can be driven to move up and down by the hydraulic oil cylinder 43, the hydraulic oil cylinder body 431 is preferably fixed on the fixing rod, and the fixing mode can adopt welding, so that the hydraulic oil cylinder 43 is more stably installed.
The calibration block 41 is fixedly connected with the moving rod, and the connection mode may be a threaded connection, a shaft pin connection, or the like, in this embodiment, a threaded connection mode is selected, which is more convenient, and specifically, as shown in fig. 1, fig. 2, or fig. 4, a connection column 411 is disposed at one end of the calibration block 41 facing the moving rod, and the connection column 411 is disposed with an internal thread for being in threaded connection with the connection column. In other embodiments of the present invention, an installation groove with an internal thread may be directly formed on the calibration block 41 to be in threaded connection with the connection rod.
Further, referring to fig. 1, the calibration block 41 is provided with a slot 42 penetrating through the left end and the right end of the calibration block 41 and having a backward opening, and an upper wall surface and/or a lower wall surface of the slot 42 are provided with arc surfaces adapted to the shape of the calibration core rod 300. By setting the upper wall surface and/or the lower wall surface of the open slot 42 to be an arc surface adapted to the shape of the mandrel, when the correction block 41 drives the correction mandrel 300 to move, the contact surface between the open slot 42 and the correction mandrel 300 is more attached, and the correction accuracy can be improved.
The following describes in detail a specific method for correcting the vehicle frame 200 by using the coaxiality correction device 100 for the vehicle frame shackle bracket provided in the present embodiment, with reference to fig. 1 to 3:
firstly, the left caliper 30 is opened, the right caliper 20 clamps the right side of the frame 200 to be detected, then the left caliper 30 is put down to clamp the left side of the frame 200 to be detected, the lock catch rod 52 is rotated to the clamp groove to be clamped with the left longitudinal beam 13, the lock catch rod 52 is locked, and the locking of the coaxiality correcting device 100 of the frame lifting lug support is completed; then, two correcting mandrels 300 (both cylinders with the diameter of 5mm are respectively inserted into the left and right lifting lug supports of the frame 200 to be detected, and the two correcting mandrels 300 are aligned away from the end parts of the lifting lug supports and leave a gap of about 1 mm.
Before correction, observing the vertical deviation condition of the left and right correction mandril 300, and correcting which side has the deviation, if the deviation is downward, using the lower wall surface of the upper slot 42 of the correction block 41 to be in contact with the correction mandril 300, and correcting by upward movement of the piston rod 432 of the hydraulic oil cylinder 43; if the upper deviation exists, the upper wall surface of the slot 42 on the correcting block 41 is contacted with the correcting mandril 300, and the correction is carried out by the downward movement of the piston rod 432 of the hydraulic oil cylinder 43. In order to protect parts and rivets from being influenced, the single correction stroke is controlled within 15mm in the correction process, and correction is carried out repeatedly and in a mode of gradually reducing the correction stroke according to the vertical deviation of the coaxiality of the correction mandrel 300 until the coaxiality of the left and right lifting lug supports meets the technical requirements.
The coaxiality correction device 100 for the frame lifting lug support provided by the embodiment of the invention has the following advantages that: (1) the problem of deviation of the coaxiality of the lifting lug support in the upward direction and the downward direction can be corrected simultaneously; (2) a special core rod is not needed to be used for correcting and detecting once before correction, so that the correction efficiency is obviously improved; (3) in the correction process, the left and right correction mandrils 300 are used as reference objects, so that excessive correction is effectively prevented; (4) the force application direction is vertical force application during correction, so that the over-difference of the width of the frame to be detected and the lifting distance of the lifting lug support cannot be caused; (5) the operation safety is high.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a frame lug support's axiality correcting unit which characterized in that includes:
the base extends in the left-right direction and is provided with a through hole;
the right caliper is arranged at the right end of the base, extends along the vertical direction and is used for being clamped with the right side of the frame;
the left caliper is connected with the left end of the base, can rotate left and right and is used for being clamped with the left side of the frame; and the number of the first and second groups,
the correcting mechanism comprises a moving rod arranged on the base and extending along the upper direction and the lower direction, the moving rod penetrates through the through hole and is movably arranged along the upper direction and the lower direction, a correcting block is arranged at one end, away from the base, of the moving rod, and the correcting block is used for being sleeved on the periphery of the correcting core rod and driving the correcting core rod to move up and down under the driving of the moving rod.
2. The coaxiality correction device of the vehicle frame lifting lug support according to claim 1, wherein the base comprises a fixed plate, a cross beam and a longitudinal beam, the fixed plate is provided with a front end and a rear end which are oppositely arranged, the through hole is formed in the fixed plate, the cross beam comprises two cross beams which extend in the left-right direction, the two cross beams are correspondingly arranged at the front end and the rear end of the fixed plate respectively, the longitudinal beam comprises a left longitudinal beam and a right longitudinal beam which extend in the front-back direction, the left longitudinal beam is connected with the left ends of the two cross beams, and the right longitudinal beam is connected with the right ends of the two cross beams;
the two right calipers are correspondingly and respectively arranged at the right ends of the two cross beams;
the left calipers are provided with two calipers, and the two calipers are correspondingly arranged at the left ends of the two cross beams.
3. The coaxiality correcting device of the vehicle frame lifting lug support according to claim 2, wherein a right caliper body extending downwards is arranged at the right end of each cross beam, two first protrusions extending towards the left are arranged on the right caliper body, and the two first protrusions are distributed at intervals along the vertical direction to form a right clamping groove used for clamping the right side of the vehicle frame;
each left side calliper includes along the left calliper main part of upper and lower to extending, the upper end of left side calliper main part with one the left end of crossbeam is rotated and is connected, left side calliper main part orientation one side of right side calliper is equipped with two second archs, two the second arch is followed from top to bottom interval distribution to form and be used for the left joint groove of joint frame.
4. The coaxiality correcting device of the vehicle frame lifting lug support according to claim 3, wherein a first mounting hole is formed at the left end of each cross beam, a second mounting hole is formed at the upper end of each left caliper body, and the second mounting holes are used for being matched with the first mounting holes so as to allow a screw to pass through.
5. The coaxiality correction apparatus of the vehicle frame shackle bracket as defined in claim 3 or 4, further comprising a locking structure, the locking structure comprising:
the lock catch supporting beam extends in the front-back direction, and two ends of the lock catch supporting beam are correspondingly connected with the two left caliper main bodies; and the number of the first and second groups,
the hasp pole has the both ends of relative setting, the one end of hasp pole with a hasp supporting beam is connected, and the other end is equipped with the draw-in groove, the draw-in groove be used for with left side longeron joint.
6. The coaxiality correction device of the vehicle frame lifting lug support according to claim 2, wherein the fixing plate and the cross beam are fixedly welded; and/or the cross beam and the longitudinal beam are fixedly welded; and/or the cross beam and the right caliper body are fixedly welded.
7. The coaxiality correcting device of the frame lifting lug support of claim 1, wherein the correcting mechanism further comprises a hydraulic oil cylinder, the hydraulic oil cylinder comprises a hydraulic oil cylinder body and a piston rod, the hydraulic oil cylinder body is fixedly arranged on the base, and the piston rod is movably arranged in an up-and-down direction in a penetrating manner in the through hole to form the moving rod.
8. The coaxiality correction device of the vehicle frame lifting lug support according to claim 1, wherein one end of the correction block facing the moving rod is provided with a connecting column, and the connecting column is provided with internal threads for being in threaded connection with the connecting rod.
9. The coaxiality correction device of the frame lifting lug support according to claim 1, wherein the correction block is provided with a slot which penetrates through the left end and the right end of the correction block and is provided with a backward opening, and the upper wall surface and/or the lower wall surface of the slot are/is provided with arc surfaces matched with the shape of the correction core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113203345A (en) * | 2021-04-27 | 2021-08-03 | 安徽江淮汽车集团股份有限公司 | Detection tool and detection method |
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| CN111872313B (en) | 2021-06-18 |
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