Automobile transmission shaft precision detection equipment
Technical Field
The utility model belongs to the technical field of automobile transmission shaft detection, and particularly relates to automobile transmission shaft precision detection equipment.
Background
The automobile transmission shaft is a core component of automobile power transmission and is responsible for transmitting power generated by an engine to wheels to drive the automobile to run. Therefore, concentricity of the transmission shaft is important for performance and safety of the automobile. Concentricity refers to the coincidence degree of axial leads at two ends of a transmission shaft, if the concentricity is poor, vibration, noise and abrasion can be generated when the transmission shaft runs, and even the transmission shaft is broken when serious, so that the driving safety is influenced.
According to the search, the Chinese patent publication number is CN213902214U, the patent name is that an automobile transmission shaft high-precision concentric detection jig comprises a base, a first vertical plate is fixedly arranged at the top end of one side of the base, a second vertical plate is slidably arranged at the top end of the other side of the base, a third vertical plate is fixedly arranged at the top end of the rear side of the base, the third vertical plate is positioned behind the first vertical plate and the second vertical plate, a turntable is rotatably arranged at the upper part of one side adjacent to the first vertical plate and the second vertical plate, a first motor is fixedly embedded at the upper part of one side of the first vertical plate far from the second vertical plate, the output end of the first motor penetrates through the first vertical plate and is fixedly connected with the adjacent turntable, a supporting plate is slidably arranged at the upper part of the front side of the third vertical plate, a first cylinder is symmetrically fixedly arranged at the front side of the supporting plate, a fixing plate is fixedly connected with the output end of the first cylinder, and a dial gauge is fixedly arranged at the front side of the fixing plate.
The high-precision concentric detection jig for the automobile transmission shaft in the prior art can clamp and drive the transmission shaft to rotate, but in actual clamping operation, a user is difficult to ensure that the clamp is accurately aligned with the central shaft position of the transmission shaft, the operation difficulty is high, in addition, the inconvenience of the operation easily causes deviation of detection data, and further, the accuracy of a detection result is adversely affected, and therefore, the high-precision concentric detection jig for the automobile transmission shaft is particularly provided with another precision detection device for the automobile transmission shaft to solve the technical problems.
Disclosure of utility model
Aiming at the problems that the fixture is difficult to be accurately aligned to the central shaft position of the transmission shaft and the operation difficulty is high before the transmission shaft is detected, the utility model provides the automobile transmission shaft precision detection equipment, which is characterized in that the right end of the automobile transmission shaft can be inserted into the corresponding inner diameter shaft center positioning groove to be positioned when the automobile transmission shaft is detected by arranging the I-shaped clamping plate with the shaft center positioning groove, and then the right end of the automobile transmission shaft is abutted and fixed by the abutting block. The specific technical scheme is as follows:
The utility model provides an automobile transmission shaft precision detection equipment, includes the base, the last fixed surface of base installs curb plate A and curb plate B, rotate between curb plate A and the curb plate B and install the threaded rod that has the hand wheel, the surface threaded connection of threaded rod has the slip table, slip table slidable mounting is on the mesa of base, and the last fixed surface of slip table installs the backup pad, run through in the backup pad and rotate and install the dwang, the left surface fixed mounting of backup pad has the motor, the output shaft of motor and the left end fixed connection of dwang, the right-hand member fixed mounting of dwang has the tight piece that supports, run through in the curb plate B and rotate and install the I-shaped splint, a plurality of axle center constant head tanks have been seted up to the left surface of I-shaped splint, the centre of a circle and the centre of a circle that supports tight piece are in same horizontal position, the last surface mounting of base has the movable frame, the front end of movable frame installs the laser interferometer that is dismantled, the detection end parallel set up in the centre of a circle top of axle center constant head tank.
In the technical scheme, the number of the shaft center positioning grooves is three, and the three shaft center positioning grooves are sequentially formed in a shrinking mode from the outer side to the inner side of the I-shaped clamping plate.
In the technical scheme, the diameters of the three axle center positioning grooves are 180mm, 165mm and 150mm respectively.
In the technical scheme, the right surface of the abutting block is fixedly provided with the rubber pad.
In the above technical scheme, two orientation bars are fixedly arranged between the side plate A and the side plate B, and the sliding table is slidably arranged between the two orientation bars.
In the above technical scheme, the upper surface of base is to this fixed mounting has two fixed plates, two fixed mounting has two dead levers between the fixed plate, the movable frame includes L type upper ledge and sill pillar, L type upper ledge is installed in the sill pillar upper end, and the front end fixed mounting of L type upper ledge has the lift shell, laser interferometer runs through the joint and installs in the lift shell, two sockets have been run through to the lower extreme surface of sill pillar, the sill pillar passes through two the socket slides and sets up between two dead levers.
In the technical scheme, the front surface of the lifting shell is penetrated and connected with the supporting bolt in a penetrating and threaded manner, and the rear surface of the supporting bolt is attached to the outer surface of the laser interferometer.
In the above technical scheme, the switching groove has been seted up to the upper surface of foundation, the lower surface center department fixed mounting of L type upper bracket has the pivot, the pivot is installed in the switching groove through two locating bearing rotations, the surface fixed mounting of foundation has the limited slip to stupefied, slidable mounting has square cover between L type upper bracket and the foundation, the lower surface of square cover is laminated with the upper surface of limited slip to stupefied.
Compared with the prior art, the automobile transmission shaft precision detection equipment has the beneficial effects that:
According to the utility model, the I-shaped clamping plate with the axle center locating groove is arranged, when the automobile transmission shaft is detected, the right end of the automobile transmission shaft can be inserted into the axle center locating groove with the corresponding inner diameter for locating, then the automobile transmission shaft is abutted and fixed by the abutting block, the whole process of determining the axle center position of the automobile transmission shaft is simple and quick to operate, the data deviation of subsequent detection can be effectively reduced, and the accuracy of the detection result is ensured.
According to the utility model, through reasonably designing the combination of the movable frame and the laser interferometer, in practical application, the detection point of the laser interferometer can be accurately controlled by flexibly adjusting the position of the movable frame. Compared with the traditional method that the dial indicator is in direct contact with the surface of the transmission shaft, the non-contact measurement of the laser interferometer not only avoids damage or scratch possibly caused to the surface of the transmission shaft, but also remarkably improves the detection efficiency and accuracy, thereby ensuring that the quality of the transmission shaft after detection is not affected.
Drawings
Fig. 1 is a schematic diagram of a front view structure of the present utility model.
Fig. 2 is a schematic rear view of the present utility model.
FIG. 3 is a schematic cross-sectional view of an I-shaped splint according to the present utility model.
Fig. 4 is a schematic cross-sectional structure of the present utility model.
Fig. 5 is a schematic view of the structure of the present utility model in use.
In the figures 1-5, 1, a base, 11, a side plate A, 12, a side plate B, 13, a fixed plate, 14, a fixed rod, 2, a threaded rod, 21, a hand wheel, 3, a directional rod, 4, a sliding table, 41, a supporting plate, 42, a rotating rod, 43, a motor, 44, a supporting block, 45, a rubber pad, 5, an I-shaped clamping plate, 51, an axle center positioning groove, 6, a movable frame, 61, an L-shaped upper frame, 611, a lifting shell, 612, a rotating shaft, 62, a bottom column, 621, a sleeve opening, 622, a switching groove, 63, a limited slip edge, 64, a square sleeve, 7, a laser interferometer and 8, a supporting bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution:
The utility model provides an automobile transmission shaft precision detection equipment, the on-line screen storage device comprises a base 1, the upper surface of base 1 is fixedly connected with curb plate A11 and curb plate B12, install the threaded rod 2 that has hand wheel 21 in the rotation between curb plate A11 and the curb plate B12, threaded rod 2's surface threaded connection has slip table 4, slip table 4 slidable mounting is on the mesa of base 1, and the upper surface of slip table 4 is fixedly connected with backup pad 41, pass through in the backup pad 41 and rotate and install dwang 42, the left surface of backup pad 41 is fixedly connected with motor 43, the output shaft of motor 43 and the left end fixed connection of dwang 42, the right-hand member of dwang 42 is fixed with support tight piece 44, pass through in the curb plate B12 and rotate and install I-shaped splint 5, a plurality of axle center constant head grooves 51 have been seted up on I-shaped splint 5's left surface, the centre of a circle of axle center constant head groove 51 and the centre of a circle of support tight piece 44 are in same horizontal position, the upper surface of base 1 installs movable frame 6, the front end of movable frame 6 installs detachable laser interferometer 7, the detection end parallel arrangement of laser interferometer 7 is in the centre of a circle center of axle center constant head groove 51, can drive tight clamp 5 through the slip table 2 through the rotation of FIG. 21, thereby adjust the centre of a left-hand wheel 4 with the centre of a clamp 5, as shown in FIG 1;
Before use, the laser interferometer 7 is connected with a notebook computer through a data transmission line for use, so as to ensure that detected data is transmitted to the notebook computer for recording;
when the laser interferometer is used, as shown in fig. 1 and 5, the right end of the automobile transmission shaft is accurately inserted into the axle center positioning groove 51 of the I-shaped clamping plate 5, after the insertion, the outer surface of the transmission shaft is tightly attached to the inner side wall of the axle center positioning groove 51, then the threaded rod 2 is used for driving the sliding table 4 to move to the right side so as to drive the abutting block 44 to firmly clamp and fix the transmission shaft, after the fixing is completed, the rotating rod 42 can be driven by the motor 43 to rotate, the abutting block 44 drives the automobile transmission shaft and the I-shaped clamping plate 5 to rotate together, in the process, the laser interferometer 7 is started to emit laser beams to the surface of the transmission shaft, the interference patterns of reflected light are measured, the measured data reflect the coaxiality information of the transmission shaft, and are recorded and analyzed by a notebook computer, and the accuracy and the reliability of the whole operation flow are ensured.
It should be noted that, the number of the shaft center positioning grooves 51 is three, and the three shaft center positioning grooves 51 are sequentially reduced from the outer side to the inner side of the i-shaped clamping plate 5, the diameters of the three shaft center positioning grooves 51 are respectively 180mm, 165mm and 150mm, and the three shaft center positioning grooves 51 are respectively applicable to the automobile transmission half shafts with the outer diameters of the right ends of 180mm, 165mm and 150 mm.
In addition, in the clamping process, in order to reduce the damage of the clamping block 44 to the automobile transmission half shaft caused by the clamping, as shown in fig. 1, a rubber pad 45 is fixedly installed on the right surface of the clamping block 44, and the rubber pad 45 can be used for replacing the clamping block 44 to contact with the automobile transmission half shaft, so that the damage to the automobile transmission half shaft caused by the clamping process is reduced.
In addition, to ensure stability when the slide table 4 slides left and right, as shown in fig. 1, two orientation bars 3 (the orientation bars 3 on the rear side are not shown in the figure due to visual problems) are fixedly installed between the side plates a11 and B12, and the slide table 4 is slidably installed between the two orientation bars 3, so that the two orientation bars 3 can be used to orient the slide table 4 in motion, thereby enhancing stability when it slides.
Specifically, as shown in fig. 2, two fixing plates 13 are fixedly installed on the upper surface of the base 1, two fixing rods 14 are fixedly installed between the two fixing plates 13, the movable frame 6 comprises an L-shaped upper frame 61 and a bottom column 62, the L-shaped upper frame 61 is installed at the upper end of the bottom column 62, a lifting shell 611 is fixedly installed at the front end of the L-shaped upper frame 61, the laser interferometer 7 is installed in the lifting shell 611 in a penetrating and clamping manner, two sleeve openings 621 are formed in the outer surface of the lower end of the bottom column 62 in a penetrating manner, the bottom column 62 is slidably arranged between the two fixing rods 14 through the two sleeve openings 621, the movable frame 6 is horizontally slidably arranged on the base 1 in a left-right horizontal direction, and the position of the movable frame 6 is slidably adjusted so as to drive the laser interferometer 7 to horizontally slide and adjust detection positions, so that concentricity detection can be conveniently carried out from different positions on the outer surface of an automobile transmission shaft.
Specifically, as shown in fig. 1, the front surface of the lift shell 611 is provided with a fastening bolt 8 penetrating the screw, the rear surface of the fastening bolt 8 is attached to the outer surface of the laser interferometer 7, and after the laser interferometer 7 is placed inside the lift shell 611, the fastening bolt 8 is used to fasten the laser interferometer 7, and when the laser interferometer 7 needs to be detached, the fastening bolt 8 is only required to be loosened appropriately to release the contact with the laser interferometer 7.
Specifically, in order to avoid that the use position of the laser interferometer 7 affects the path position of the automobile transmission shaft when the automobile transmission shaft is placed, as shown in fig. 4, a transfer groove 622 is formed on the upper surface of the bottom column 62, a rotating shaft 612 is fixedly installed at the center of the lower surface of the l-shaped upper frame 61, the rotating shaft 612 is rotatably installed in the transfer groove 622 through two positioning bearings, a slip-resisting rib 63 is fixedly installed on the outer surface of the bottom column 62, fang Xingtao 64 is slidably installed between the l-shaped upper frame 61 and the bottom column 62, and the lower surface of the Fang Xingtao is attached to the upper surface of the slip-resisting rib 63;
When the automobile transmission shaft is placed between the supporting and fixing block 44 and the I-shaped clamping plate 5 for clamping and fixing, the square sleeve 64 can be firstly slid upwards to be separated from the joint of the L-shaped upper frame 61 and the bottom post 62, then the position of the L-shaped upper frame 61 can be rotationally adjusted to change the position of the laser interferometer 7, the automobile transmission shaft placing operation is avoided being influenced, after the automobile transmission shaft is clamped and fixed, the L-shaped upper frame 61 is rotationally reset, the square sleeve 64 is slid downwards to the upper surface of the anti-slip rib 63, the L-shaped upper frame 61 can be limited by the square sleeve 64 and is rotationally placed, so that the detection position of the laser interferometer 7 is in a corrected state
When the automobile transmission shaft is placed between the abutting block 44 and the I-shaped clamping plate 5 for clamping and fixing, the square sleeve 64 is firstly slid along the vertical direction until the square sleeve is completely separated from the joint of the L-shaped upper frame 61 and the bottom post 62, then, the position of the laser interferometer 7 can be flexibly changed by adjusting the rotation angle of the L-shaped upper frame 61, so that the interference to the placing process of the automobile transmission shaft is avoided, after the automobile transmission shaft is clamped firmly, the L-shaped upper frame 61 is required to be reset to the original position, the square sleeve 64 is moved to the upper surface of the anti-slip rib 63 along the lower sliding rail, at the moment, the square sleeve 64 plays a limiting role, the L-shaped upper frame 61 is effectively prevented from unnecessarily rotating, and the detection position of the laser interferometer 7 is ensured to be in an accurate correction state.