New energy electric drive axle differential mechanism pad selection measuring device

Abstract

The utility model relates to the technical field of differential mechanism pad selection measurement, in particular to a new energy electric drive axle differential mechanism pad selection measurement device, which comprises a working table, a measurement seat and a measurement piece, and is characterized in that the measurement seat is mounted on the upper surface of the working table and is used for mounting a differential mechanism shell and a half axle gear; the measuring part comprises a measuring rod, a first driving part, a measuring part and a distance sensor, the measuring rod is connected with the workbench, the first driving part is connected with the measuring rod, the telescopic end of the first driving part is connected with the measuring part and used for driving the measuring part to move in the Z-axis direction, and the distance sensor is embedded in the lower surface of the measuring part. According to the utility model, the first driving member drives the measuring part to move up and down in the differential housing, so that the distance between the inner end face of the differential housing and the axis of the mounting shaft hole and the distance between the half axle gear and the axis of the mounting shaft hole are measured, direct measurement of the differential pad selection thickness can be realized, and the accuracy of differential pad selection measurement is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to differential select pad measurement technical field especially a new energy electric drive axle differential select pad measuring device. BACKGROUND

[0002] With the continuous development of industry, the competition of automobile industry is more and more fierce, especially the vigorous development of new energy electric vehicles in recent years, the motor drive of new energy electric vehicles and traditional fuel power drive have great difference, the biggest feature of motor drive is very fast response speed, and the acceleration time of 100 kilometers is far lower than that of fuel vehicle, which puts forward higher requirements for the design and manufacture of automobile, especially the performance requirements of automobile transmission system related parts are higher, and the differential is the key part in the automobile transmission system. The differential is mainly composed of left and right half shaft gears, planetary gears and differential housing, the meshing gap of half shaft gear and planetary gear is realized by selecting the gasket between half shaft gear and differential housing, that is, differential select pad, and the differential select pad directly affects the performance and service life of differential and whole vehicle, and the differential select pad is determined by measuring the axial gap of half shaft gear and differential housing, therefore, we urgently need a new energy electric drive axle differential select pad measuring device.

[0003] At present, the measurement method of differential select pad is indirect measurement, that is, the differential select pad is measured by compressing the assembled differential through the air cylinder, however, since the differential is assembled, the differential select pad cannot be directly measured, which will affect the accuracy of differential select pad measurement, and cannot ensure the yield of differential assembly. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings in the prior art, the present application provides a new energy electric drive axle differential select pad measuring device, which can directly measure the differential select pad by improving the differential select pad measurement method, thereby improving the accuracy of differential select pad measurement.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a new energy electric drive bridge differential gear selects the measuring device of pad, including: workbench, measuring seat and measuring piece, the upper surface of workbench is installed to measuring seat, and the measuring seat is used for installing differential gear housing and half shaft gear, and is fixed through the positioning piece, the measuring piece is connected with workbench through the drive assembly, the measuring piece includes: measuring rod, first drive piece, measuring part and distance sensor, the measuring rod is connected with workbench, the first drive piece is connected with the measuring rod, the telescopic end of first drive piece is connected with measuring part and is used to drive measuring part moves along Z axle direction, measuring part is correspondingly arranged with measuring seat, and the distance sensor is embedded in the lower surface of measuring part.

[0007] Therefore, the measuring part is driven by the first drive piece to move up and down in the differential gear housing to measure the distance between the end face of the differential gear housing and the axis of the mounting shaft hole and the distance between the half shaft gear and the axis of the mounting shaft hole. Compared with the existing indirect measurement method, the direct measurement method has a simple structure, is easy to operate, can directly measure the thickness of the differential gear pad, improves the accuracy of the differential gear pad measurement and ensures the yield of the differential gear assembly.

[0008] As a further improvement of the above technical solution: the positioning piece is provided with two, two positioning pieces are located on the two sides of the measuring seat, and the positioning piece is connected with the workbench through the first drive mechanism, and the first drive mechanism is used to drive two positioning pieces to move towards each other or to move relative to each other. Therefore, the reference positioning of the differential gear housing mounting shaft hole can be realized by two positioning pieces. The two positioning pieces moving towards each other or moving relative to each other can adjust the distance between the two positioning pieces to adapt to the measurement of differential gear pads of different models.

[0009] As a further improvement of the above technical solution: the first drive mechanism includes a second drive piece, a bidirectional threaded rod and two first sliding blocks, the second drive piece is connected with the workbench, the middle position of the bidirectional threaded rod penetrates the workbench and is rotatably connected with the workbench, one end of the bidirectional threaded rod is connected with the driving end of the second drive piece, the other end of the bidirectional threaded rod is rotatably connected with the workbench, two first sliding blocks are respectively sleeved on the two ends of the bidirectional threaded rod and are threadedly connected with the bidirectional threaded rod, and the positioning piece is connected with the first sliding block. Therefore, the movement of the two positioning pieces is kept synchronous by the bidirectional threaded rod to ensure that the differential gear housing and the half shaft gear are always in the middle position of the measuring seat. In this way, the accuracy of the differential gear pad measurement can be improved.

[0010] As a further improvement of the above technical solution: the first driving mechanism further comprises two third driving members, the third driving members are connected with the first sliding block, the telescopic ends of the third driving members are connected with the positioning member, and the third driving members are used for driving the positioning member to move along the Z-axis direction.

[0011] As a further improvement of the above technical solution: the measuring member further comprises a second sliding block, the second sliding block is connected with the measuring rod, and the second sliding block is in sliding connection with the workbench.

[0012] As a further improvement of the above technical solution: the driving assembly is a fourth driving member, the fourth driving member is located on the side, away from the measuring seat, of the second sliding block, the fourth driving member is connected with the workbench, the telescopic end of the fourth driving member is connected with the second sliding block, and the fourth driving member is used for driving the second sliding block to move along the X-axis direction.

[0013] As a further improvement of the above technical solution: the measuring rod comprises a vertical part and a horizontal part, one end of the vertical part is connected with the upper surface of the second sliding block, the horizontal part is installed at the other end of the vertical part, and the horizontal part is located on the side, away from the fourth driving member, of the vertical part.

[0014] The beneficial effects of the utility model are as follows:

[0015] The measuring part is driven to move up and down in the differential gear housing by the first driving member, so that the measurement of the distance between the end face of the differential gear housing and the axis of the mounting shaft hole and the distance between the half shaft gear and the axis of the mounting shaft hole is realized.

[0016] The utility model also has the following advantages:

[0017] 1. The utility model discloses a two -way screw rod is used to ensure that the movement of two positioning pieces keeps synchronous, ensures that the differential mechanism shell, half axle gear is always in the middle position of the measuring seat, like this, can improve the precision of differential mechanism pad selection measurement.

[0018] 2. The utility model discloses a third drive piece can drive the positioning piece to move up and down, like this, can ensure that the positioning piece is always aligned with the installation shaft hole of the differential mechanism, to realize the measurement operation of different model differential mechanism pad selection.

[0019] 3. The utility model discloses a fourth drive piece can drive whole measuring piece to move to the side of the measuring seat close or far, like this, can ensure that the measurement part is located in the direct upper of differential mechanism shell when measuring, when installing and disassembling differential mechanism shell and half axle gear, whole measuring rod will not interfere with differential mechanism shell and half axle gear. ACCURACY

[0020] Figure 1 It is the structure schematic drawing of the first visual angle of the new energy electric drive axle differential mechanism pad selection measurement device of the utility model;

[0021] Figure 2 It is the structure schematic drawing of the second visual angle of the new energy electric drive axle differential mechanism pad selection measurement device of the utility model;

[0022] Figure 3 It is the structure schematic drawing of the first visual angle of the measuring piece of the utility model;

[0023] Figure 4 It is the structure schematic drawing of the second visual angle of the measuring piece of the utility model;

[0024] Figure 5 It is the structure schematic drawing of the first drive mechanism of the utility model;

[0025] Figure 6 It is the schematic diagram of the spacing measurement between half axle gear and installation shaft hole axis of the utility model;

[0026] Figure 7 It is the schematic diagram of the spacing measurement between differential mechanism shell inner end face and installation shaft hole axis of the utility model.

[0027] Among them: 1, worktable;

[0028] 2, measuring seat;

[0029] 3, measuring piece;

[0030] 301, measuring rod;3011, vertical part;3012, horizontal part;302, first drive piece;303, measurement part;304, distance sensor;305, second sliding block;

[0031] 4, positioning piece;

[0032] 5. the first driving mechanism;

[0033] 501. the second driving member; 502. the bidirectional screw rod; 503. the first sliding block; 504. the third driving member; 6. the fourth driving member. DETAILED DESCRIPTION

[0034] The specific implementation of the present application will be described below in conjunction with the drawings.

[0035] As Figures 1 to 7 shown, is the optimal embodiment of the present application, the new energy electric drive axle differential pad selection measurement device, comprising: workbench 1, measurement seat 2 and measurement piece 3, measurement seat 2 is installed on the upper surface of workbench 1, and measurement seat 2 is used for installing differential housing and half shaft gear, and is fixed through positioning piece 4, measurement piece 3 is slidably connected with workbench 1 through driving assembly, measurement piece 3 comprises: measuring rod 301, first driving member 302, measurement part 303 and distance sensor 304, measuring rod 301 is connected with workbench 1, first driving member 302 is connected with measuring rod 301, the telescopic end of first driving member 302 is connected with measurement part 303, and is used for driving measurement part 303 to move along the Z axis direction, measurement part 303 is correspondingly arranged with measurement seat 2, distance sensor 304 is embedded in the lower surface of measurement part 303. Therefore, the measurement part 303 is driven to move up and down in the differential housing by the first driving member 302, so as to realize the measurement of the distance between the end face of the differential housing and the axis of the mounting shaft hole, and the distance between the half shaft gear and the axis of the mounting shaft hole. Compared with the existing indirect measurement method, the direct measurement method has the advantages of simple structure, convenient operation and direct measurement of the thickness of the differential pad selection, which can improve the accuracy of the differential pad selection measurement and ensure the yield of the differential assembly.

[0036] For example: the first driving member 302 adopts a pneumatic cylinder.

[0037] In the embodiment, two positioning members 4 are arranged, and the two positioning members 4 are located at two sides of the measuring seat 2, and the positioning member 4 is connected with the workbench 1 through the first driving mechanism 5, and the first driving mechanism 5 is used for driving the two positioning members 4 to move towards each other or to move relatively; the first driving mechanism 5 comprises a second driving member 501, a bidirectional threaded rod 502, two first sliding blocks 503 and two third driving members 504, the second driving member 501 is connected with the workbench 1, the middle position of the bidirectional threaded rod 502 penetrates through the workbench 1 and is rotationally connected with the workbench 1, one end of the bidirectional threaded rod 502 is connected with the driving end of the second driving member 501, the other end of the bidirectional threaded rod 502 is rotationally connected with the workbench 1, the two first sliding blocks 503 are respectively sleeved on the two ends of the bidirectional threaded rod 502 and are threadedly connected with the bidirectional threaded rod 502, the positioning member 4 is connected with the first sliding block 503, the third driving member 504 is connected with the first sliding block 503, and the telescopic end of the third driving member 504 is connected with the positioning member 4 and is used for driving the positioning member 4 to move along the Z-axis direction. Therefore, the reference positioning of the differential housing mounting shaft hole can be realized through the two positioning members 4; the adjustment of the distance between the two positioning members 4 can be realized through the two positioning members 4 moving towards each other or moving relatively, so as to adapt to the measurement operation of different types of differential pads; the movement of the two positioning members 4 is kept synchronous through the bidirectional threaded rod 502, so as to ensure that the differential housing and the half shaft gear are always located at the middle position of the measuring seat 2, and thus the measurement precision of the differential pad can be improved; the positioning member 4 can be driven to move up and down through the third driving member 504, and thus it can be ensured that the positioning member 4 is always aligned with the mounting shaft hole of the differential, so as to realize the measurement operation of different types of differential pads.

[0038] Specifically, the second driving member 501 is started, the bidirectional threaded rod 502 is driven to rotate clockwise or counterclockwise through the second driving member 501, so that the two first sliding blocks 503 move towards each other or move relatively, and then the two first sliding blocks 503 move towards each other or move relatively.

[0039] For example, the second driving member 501 is an electric motor, and the third driving member 504 is a pneumatic cylinder.

[0040] In the embodiment, the measuring piece 3 further comprises: a second sliding block 305 connected with the measuring rod 301, and the second sliding block 305 is in sliding connection with the workbench 1; the measuring rod 301 comprises: a vertical part 3011 and a horizontal part 3012, one end of the vertical part 3011 is connected with the upper surface of the second sliding block 305, and the horizontal part 3012 is installed at the other end of the vertical part 3011 and located at the side of the vertical part 3011 away from the fourth driving piece 6. Thus, by the design of the horizontal part 3012, the side of the vertical part 3011 close to the measuring seat 2 has a certain accommodation space, which on the one hand facilitates the installation of the measuring part 303, and on the other hand can shorten the movement stroke of the fourth driving piece 6, so as to reduce the size of the fourth driving piece 6 and further reduce the production cost of the whole measuring device.

[0041] In the embodiment, the driving assembly is the fourth driving piece 6, the fourth driving piece 6 is located at the side of the second sliding block 305 away from the measuring seat 2, the fourth driving piece 6 is connected with the workbench 1, and the telescopic end of the fourth driving piece 6 is connected with the second sliding block 305 and used to drive the second sliding block 305 to move along the X-axis direction. Thus, the fourth driving piece 6 can drive the whole measuring piece 3 to move towards or away from the side of the measuring seat 2, so that the measuring part 303 can be ensured to be located directly above the differential housing during measurement, and the whole measuring rod 301 will not interfere with the differential housing and the half shaft gear during the installation and removal of the differential housing and the half shaft gear.

[0042] For example, the fourth driving piece 6 is a pneumatic cylinder.

[0043] The measuring process of the differential pad selection device is as follows: firstly, the differential housing and the half shaft gear to be measured are placed on the measuring seat 2; then, the two positioning pieces 4 are controlled to move by the first driving mechanism 5, and the two mounting shaft holes of the differential housing and the half shaft gear are locked by the two positioning pieces 4; then, the whole measuring piece 3 is driven to move towards the side of the measuring seat 2 by the fourth driving piece 6, so that the measuring part 303 is located directly above the differential housing; finally, the measuring part 303 is driven to move downwards by the first driving piece 302, when the lower surface of the measuring part 303 is in contact with the half shaft gear, the measurement value of the distance sensor 304 is L1 (i.e. the distance between the half shaft gear and the axis of the mounting shaft hole), when the lower surface of the measuring part 303 coincides with the inner surface of the differential housing, the measurement value of the distance sensor 304 is L2 (i.e. the distance between the inner end surface of the differential housing and the axis of the mounting shaft hole), and the thickness L of the differential pad selection device is L2-L1, and after each measurement, the measured differential housing and half shaft gear need to be taken off from the measuring seat 2.

[0044] In summary, the utility model discloses a first drive 302 drive measurement department 303 in the differential shell lifts and moves to realize the differential shell in the end face and the installation axle hole axis between the spacing, half axle gear and the installation axle hole axis between the spacing measurement, compared to the prior art indirect measurement mode, this direct measurement mode simple structure, convenient operation can realize the differential pad thickness direct measurement of differential pad measurement accuracy, and ensure the yield of differential assembly.

[0045] The above description is the explanation of the utility model, is not the limitation of the utility model, the range defined in the utility model refers to the claim, within the protection scope of the utility model, can make any form's modification.

Claims

1. A new energy electric drive axle differential select pad measuring device, characterized in that, Include: Workbench (1), and Measuring seat (2) is installed on the upper surface of the workbench (1), and the measuring seat (2) is used to install the differential housing and half shaft gear, and is fixed by positioning piece (4); Measuring piece (3) is connected with the workbench (1) through the driving assembly, the measuring piece (3) comprises: Measuring rod (301), first driving piece (302), measuring part (303) and distance sensor (304), the measuring rod (301) is connected with the workbench (1), the first driving piece (302) is connected with the measuring rod (301), the telescopic end of the first driving piece (302) is connected with the measuring part (303), and the first driving piece (302) is used to drive the measuring part (303) to move along the Z axis direction, the measuring part (303) is arranged correspondingly with the measuring seat (2), and the distance sensor (304) is embedded in the lower surface of the measuring part (303).

2. The new energy electric drive axle differential select pad measurement device of claim 1, wherein: The positioning piece (4) is provided with two, two positioning pieces (4) are located on the two sides of the measuring seat (2), and the positioning piece (4) is connected with the workbench (1) through the first driving mechanism (5), the first driving mechanism (5) is used to drive two positioning pieces (4) to move towards each other or relatively.

3. The new energy electric drive axle differential select pad measurement device of claim 2, wherein: The first driving mechanism (5) comprises: Second driving piece (501), bidirectional threaded rod (502) and two first sliding blocks (503), the second driving piece (501) is connected with the workbench (1), the middle position of the bidirectional threaded rod (502) penetrates the workbench (1), and is rotatably connected with the workbench (1), one end of the bidirectional threaded rod (502) is connected with the driving end of the second driving piece (501), the other end of the bidirectional threaded rod (502) is rotatably connected with the workbench (1), two first sliding blocks (503) are sleeved on two ends of the bidirectional threaded rod (502) respectively, and are threadedly connected with the bidirectional threaded rod (502), the positioning piece (4) is connected with the first sliding block (503).

4. The new energy electric drive axle differential select pad measurement device of claim 3, wherein: The first driving mechanism (5) further comprises: Two third driving pieces (504), the third driving piece (504) is connected with the first sliding block (503), the telescopic end of the third driving piece (504) is connected with the positioning piece (4), and the third driving piece (504) is used to drive the positioning piece (4) to move along the Z axis direction.

5. The new energy electric drive axle differential select pad measuring device of claim 1, wherein: The measuring piece (3) further comprises: Second sliding block (305), the second sliding block (305) is connected with the measuring rod (301), and the second sliding block (305) is connected with the workbench (1) in sliding mode.

6. The new energy electric drive axle differential select pad measurement device of claim 5, wherein: The driving assembly is a fourth driving piece (6), which is located on the side, away from the measuring seat (2), of the second sliding block (305), is connected with the workbench (1), and has a telescopic end connected with the second sliding block (305) and used for driving the second sliding block (305) to move along the X-axis direction.

7. The new energy electric drive axle differential select pad measurement device of claim 6, wherein: The measuring rod (301) comprises: a vertical part (3011) and a horizontal part (3012), one end of the vertical part (3011) is connected with the upper surface of the second sliding block (305), the horizontal part (3012) is installed at the other end of the vertical part (3011), and the horizontal part (3012) is located on the side, away from the fourth driving piece (6), of the vertical part (3011).

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