Transmission housing end face distance measuring device

Abstract

The application discloses a transmission housing end face distance measuring device, and relates to the technical field of transmission production equipment, which comprises a measuring device rack and a measuring device slidingly installed on the measuring device rack, and a housing base is arranged below the measuring device. The measuring device comprises an installation frame, a measuring sensor is installed in the installation frame, a contact screw installation plate is movably arranged in the installation frame, and a contact screw is arranged on the contact screw installation plate and corresponds to the position of the measuring sensor. The lower end of the installation frame is connected with a reference surface contact plate, the contact screw installation plate is located on the upper side of the reference surface contact plate, the lower side of the contact screw installation plate is fixedly connected with a third connecting column, and the third connecting column is connected with a measuring surface contact plate after sliding through the reference surface contact plate. The application can accurately measure the distance between the two end surfaces of the transmission housing, has high measuring precision, high measuring efficiency and good measuring reproducibility, and can effectively guarantee the service life of the transmission.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transmission production equipment, in particular to a transmission housing end face distance measuring device. BACKGROUND

[0002] The transmission is also called gearbox, which is the main power component between the automobile, used for changing the rotating speed and torque from the engine. The transmission includes a transmission housing, and a plurality of transmission shafts and transmission gears and other components are assembled in the transmission housing. When assembling the transmission shaft train parts, the related parts on the shaft train size chain need to be measured, and after the measurement, the shaft train gap adjusting shims are selected for assembly. The transmission housing is an important part on the transmission shaft train, and the two end faces of the housing need to be measured before assembly. At present, the simple tool and depth gauge are generally used for manual measurement, which has low measurement accuracy, low efficiency and poor measurement reproducibility, resulting in incorrect measurement and inaccurate selection of adjusting shims, affecting the normal service life of the transmission. SUMMARY

[0003] In view of the above defects, the purpose of the present application is to provide a transmission housing end face distance measuring device, which can accurately measure the distance between the two end faces of the transmission housing, has high measurement accuracy, high measurement efficiency and good measurement reproducibility, and can effectively ensure the service life of the transmission.

[0004] In order to achieve the above purpose, the technical scheme of the present application is as follows:

[0005] A transmission housing end face distance measuring device, comprising a measuring device rack and a measuring device slidingly installed on the measuring device rack, and a housing base is arranged below the measuring device; the measuring device comprises a mounting frame, a measuring sensor is installed in the mounting frame, a contact screw mounting plate is movably arranged in the mounting frame, and a contact screw is arranged on the contact screw mounting plate corresponding to the position of the measuring sensor; a reference surface contact plate is connected to the lower end of the mounting frame, the contact screw mounting plate is located on the upper side of the reference surface contact plate, a third connecting column is fixedly connected to the lower side of the contact screw mounting plate, and the third connecting column is connected to a measuring surface contact plate after sliding through the reference surface contact plate.

[0006] The top end of the measuring device rack is provided with a measuring device moving cylinder, the moving piston rod of the measuring device moving cylinder extends into the measuring device rack and is connected to a mounting frame connecting block, a running strip hole is arranged on the side wall of the measuring device rack, a measuring device mounting rack is connected to the mounting frame connecting block after the mounting frame connecting block extends out of the running strip hole, and the measuring device is mounted on the measuring device mounting rack; a measuring device guide rail is arranged on each of the side walls of the measuring device rack on both sides of the running strip hole, and the measuring device mounting rack is fixedly connected with the sliding blocks of the two measuring device guide rails.

[0007] The side wall of the lower end of the running strip hole is provided with a limiting mounting rack, a limiting screw and a buffer are mounted on the limiting mounting rack, an upper limiting sensor and a lower limiting sensor are mounted on the side wall of the side of the measuring device rack which is not provided with the measuring device guide rail, and a positioning screw is mounted on the mounting frame connecting block.

[0008] The middle part of the measuring device mounting rack is provided with a mounting hole, a measuring device mounting plate is overlapped above the measuring device mounting rack, a first connecting column is connected to the measuring device mounting plate, and the first connecting column passes through the mounting hole and is connected to the mounting frame.

[0009] The upper end of the first connecting column passes through the mounting sleeve and is locked and positioned by a locking nut, an active gap is arranged between the first connecting column and the inner wall of the mounting sleeve, and a first floating spring is sleeved on the first connecting column between the measuring device mounting plate and the mounting frame.

[0010] The mounting frame comprises a displacement cylinder mounting plate connected with the first connecting column, the lower side of the displacement cylinder mounting plate is connected with a second connecting column, and the second connecting column is connected with the reference surface contact plate; a displacement cylinder is mounted on the displacement cylinder mounting plate, the lower end of the displacement piston rod of the displacement cylinder is connected with a sensor mounting plate, and the measuring sensor is mounted on the circumferential side of the sensor mounting plate through a sensor mounting rack.

[0011] The upper end of the displacement piston rod is provided with a cylinder position sensing block, a first cylinder position sensor and a second cylinder position sensor are mounted above the displacement cylinder mounting plate through a sensor mounting support, and the installation height of the first cylinder position sensor and the second cylinder position sensor is different.

[0012] The upper side of the sensor mounting plate is connected with a guide column, a guide sleeve is mounted through the displacement cylinder mounting plate, and the guide column is slidingly inserted into the guide sleeve.

[0013] The first transition plate is arranged between the reference surface contact plate and the second connecting column, the reference surface contact plate is an annular plate, the first transition plate is provided with a connecting column via for the third connecting column to pass through at a position corresponding to the third connecting column, and an activity gap is arranged between the third connecting column and a hole wall of the connecting column via; the second transition plate is arranged between the third connecting column and the measurement surface contact plate, a limiting sleeve is connected to the second transition plate, the limiting sleeve is sleeved outside the third connecting column and has a length less than that of the third connecting column, a floating thrust bearing is sleeved on the third connecting column at a lower side of the first transition plate, and a second floating spring is sleeved on the third connecting column and the limiting sleeve between the floating thrust bearing and the second transition plate.

[0014] The plurality of measurement device position adjusting blocks are arranged on the measurement device mounting frame at a side of the measurement device mounting plate, the measurement device position adjusting block comprises a bolt mounting block fixed to the measurement device mounting frame, and an adjusting bolt is threadedly connected to the bolt mounting block, and an end of the adjusting bolt abuts against a side wall of the measurement device mounting plate.

[0015] After the above technical scheme is used, the present application has the following beneficial effects:

[0016] The transmission housing end face distance measuring device of the present application comprises a measuring device frame and a measuring device slidingly installed on the measuring device frame, and a housing base is arranged below the measuring device; the measuring device comprises an installation frame, a measuring sensor is installed in the installation frame, a contact screw installation plate is movably arranged in the installation frame, and a contact screw is arranged on the contact screw installation plate at a position corresponding to the measuring sensor; a reference surface contact plate is connected to the lower end of the installation frame, the contact screw installation plate is arranged on the upper side of the reference surface contact plate, a third connecting column is fixedly connected to the lower side of the contact screw installation plate, and the third connecting column is connected to a measuring surface contact plate after sliding through the reference surface contact plate. When measuring, the transmission housing is placed on the housing base, the measuring device moves downward along the measuring device frame, when the measuring device moves to the position, the reference surface contact plate contacts a first measuring end surface (defined as a measuring reference surface) of the transmission housing, the measuring surface contact plate contacts a second measuring end surface (defined as a measuring surface) of the transmission housing, after the measuring surface contact plate contacts the measuring surface, the measuring surface pushes the measuring surface contact plate upward, the contact screw installation plate and the contact screw are lifted up with the measuring surface contact plate, the contact screw compresses the measuring sensor, the measuring sensor measures a corresponding value, the value measured by the measuring sensor is the difference between the distance between the two end surfaces of the transmission housing and the distance between the two end surfaces of the standard transmission housing, so that the accurate value of the distance between the two end surfaces of the transmission housing can be obtained, and the specification of the adjusting gasket can be accurately selected according to the value, so that the service life of the transmission can be effectively guaranteed. Therefore, compared with the existing manual measurement, the transmission housing end face distance measuring device of the present application has the advantages of high measurement accuracy, high measurement efficiency and good measurement reproducibility.

[0017] In summary, the transmission housing end face distance measuring device of the present application solves the technical problems of poor accuracy and low efficiency in measuring the distance between the end surfaces of the transmission housing in the prior art, can accurately measure the distance between the two end surfaces of the transmission housing, has high measurement accuracy, high measurement efficiency and good measurement reproducibility, and can effectively guarantee the service life of the transmission. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the transmission housing end face distance measuring device of the present application;

[0019] Figure 2 is a sectional view of Figure 1 ;

[0020] Figure 3 is a structural schematic view of the measuring device in Figure 1 ;

[0021] Figure 4 is a structural schematic view of the measuring device in Figure 1 ;

[0022] Figure 5 is Figure 3 A-A line section view of

[0023] Fig. 10, housing base, 12, housing positioning pin, 20, transmission housing, 22, measurement reference surface, 24, measurement surface, 30, measuring device rack, 32, rack top plate, 34, running bar hole, 40, measuring device moving cylinder, 401, moving piston rod, 402, floating joint, 42, limit mounting frame, 44, limit screw, 46, buffer, 50, measuring device, 510, measuring device mounting plate, 512, displacement cylinder mounting plate, 513, contact screw mounting plate, 514, sensor mounting plate, 515, first transition plate, 516, reference surface contact plate, 517, second transition plate, 518, measurement surface contact plate, 520, first connecting column, 522, first floating spring, 524, second connecting column, 526, third connecting column, 527, limit sleeve, 528, second floating spring, 530, sensor mounting frame, 532, measurement sensor, 533, contact screw, 540, displacement cylinder, 541, first cylinder position sensor, 542, second cylinder position sensor, 543, cylinder position sensing block, 544, displacement piston rod, 545, piston rod connecting head, 550, mounting sleeve, 552, locking nut, 560, guide sleeve, 562, guide column, 57, floating thrust bearing, 60, measuring device mounting frame, 62, measuring device position adjusting block, 620, bolt mounting block, 622, adjusting bolt, 64, mounting frame connecting block, 66, positioning screw, 68, measuring device guide rail, 70, upper limit sensor, 72, lower limit sensor. DETAILED DESCRIPTION

[0024] The present application is further described below in conjunction with the accompanying drawings and examples.

[0025] The directions referred to in the specification are based on the directions shown in the drawings and represent only relative positional relationships and not absolute positional relationships.

[0026] As Figure 1 and Figure 2 shown in common, a transmission housing end face distance measuring device includes a square cylindrical measuring device rack 30, the measuring device rack 30 is vertically arranged, the measuring device rack 30 is provided with a measuring device 50 which slides up and down along the measuring device rack 30, the measuring device 50 is provided with a housing base 10 directly below, the housing base 10 is provided with a housing positioning pin 12, when measuring the end face distance, the transmission housing 20 can be accurately placed on the housing base 10 through the housing positioning pin 12.

[0027] As Figure 1 , Figure 2 andFigure 4 As shown in the figures, the top end of the measuring device rack 30 is provided with a rack top plate 32, and a measuring device moving cylinder 40 is installed on the rack top plate 32. The inside of the measuring device moving cylinder 40 is provided with a moving piston rod 401, the lower end of the moving piston rod 401 vertically penetrates the rack top plate 32 and extends into the measuring device rack 30, and the lower end of the moving piston rod 401 is connected with a floating joint 402. The floating joint 402 is fixedly connected with a mounting rack connecting block 64, the mounting rack connecting block 64 horizontally extends out of the measuring device rack 30 and is connected with a measuring device mounting rack 60, and the measuring device 50 is installed on the measuring device mounting rack 60. A vertical running strip hole 34 is arranged on the side wall of the measuring device rack 30, the mounting rack connecting block 64 penetrates out of the measuring device rack 30 from the running strip hole 34, and the mounting rack connecting block 64 moves up and down in the running strip hole 34 under the drive of the measuring device moving cylinder 40, so as to drive the measuring device mounting rack 60 to slide up and down, and further drive the measuring device 50 to slide up and down along the measuring device rack 30. The side wall of the measuring device rack 30 located on both sides of the running strip hole 34 is respectively provided with a measuring device guide rail 68, the extension direction of the two measuring device guide rails 68 is consistent with the extension direction of the running strip hole 34, the vertical plate of the measuring device mounting rack 60 is fixedly connected with the mounting rack connecting block 64 and further fixedly connected with the sliding blocks of the two measuring device guide rails 68, and the measuring device guide rails 68 can improve the linearity and stability of the up and down sliding of the measuring device 50.

[0028] As shown in the figures, Figure 1 and Figure 2 As shown in the figures, a limiting mounting rack 42 is clamped on the side wall of the measuring device rack 30 located at the lower end of the running strip hole 34, the limiting mounting rack 42 extends out of the measuring device rack 30 and is provided with a limiting screw 44 and a buffer 46 side by side, the limiting screw 44 and the buffer 46 correspond to the vertical plate of the measuring device mounting rack 60 in the vertical direction, and play a limiting and buffering role when the measuring device 50 slides downward, which is beneficial to protect the measuring device 50.

[0029] As shown in the figures, Figure 1 and Figure 2 As shown in the figures, an upper limiting sensor 70 and a lower limiting sensor 72 are installed on the side wall of the measuring device rack 30 which is not provided with the measuring device guide rail 68, and the side wall is preferably the side wall opposite to the side wall provided with the measuring device guide rail 68. A positioning screw 66 is installed on the side of the mounting rack connecting block 64 opposite to the upper limiting sensor 70 and the lower limiting sensor 72, and the upper limiting sensor 70 and the lower limiting sensor 72 determine the position of the measuring device 50 by detecting the positioning screw 66 when the mounting rack connecting block 64 moves up and down, so as to control the start and stop of the measuring device moving cylinder 40.

[0030] As shown in the figures, Figure 2 ,Figure 3 、 Figure 4 and Figure 5 As shown in the drawings, the measuring device 50 comprises a mounting frame, a measuring sensor 532 is mounted in the mounting frame, a contact screw mounting plate 513 is movably arranged in the mounting frame, and a contact screw 533 is arranged on the contact screw mounting plate 513 corresponding to the position of the measuring sensor 532. The lower end of the mounting frame is connected with a reference surface contact plate 516, the contact screw mounting plate 513 is located on the upper side of the reference surface contact plate 516, the lower side of the contact screw mounting plate 513 is fixedly connected with a third connecting column 526, and the third connecting column 526 is connected with a measuring surface contact plate 518 after sliding through the reference surface contact plate 516. In this embodiment, the measuring sensor 532 is preferably a contact type displacement sensor, and further preferably three measuring sensors 532 and three contact screws 533 are arranged. The three measuring sensors 532 are arranged in a equidistant triangle shape, and the three measuring sensors 532 contact three points of the measuring surface 24 of the transmission housing 20 through the measuring surface contact plate 518. The values measured by the three measuring sensors 532 are averaged to obtain the final measured value, so that the error caused by the flatness of the workpiece can be reduced, and the measured value is more accurate.

[0031] As shown in the drawings, Figure 3 、 Figure 4 and Figure 5As shown, the middle part of the horizontal plate of the measuring device mounting frame 60 is provided with a mounting hole, the upper part of the horizontal plate is overlapped with a measuring device mounting plate 510, four first connecting columns 520 are connected to the measuring device mounting plate 510, the four first connecting columns 520 pass through the mounting hole from top to bottom, and the lower ends of the four first connecting columns 520 are connected together with the mounting frame. The mounting frame comprises a displacement air cylinder mounting plate 512 connected with the four first connecting columns 520, the lower side of the displacement air cylinder mounting plate 512 is connected with four second connecting columns 524, the four second connecting columns 524 are connected with a reference surface contact plate 516 through a first transition plate 515, the first transition plate 515 is arranged between the second connecting columns 524 and the reference surface contact plate 516, the second connecting columns 524 are connected with the first transition plate 515 through fasteners, the first transition plate 515 is connected with the reference surface contact plate 516 through fasteners, so that the first connecting columns 520, the displacement air cylinder mounting plate 512, the second connecting columns 524, the first transition plate 515 and the reference surface contact plate 516 are connected as a whole, which is defined as a whole P. A contact screw mounting plate 513 is overlapped above the first transition plate 515 and is located inside the four second connecting columns 524, in the embodiment, the lower side of the contact screw mounting plate 513 is connected with three third connecting columns 526, the first transition plate 515 is provided with connecting column through holes corresponding to the positions of the three third connecting columns 526, the reference surface contact plate 516 is a ring-shaped plate, the three third connecting columns 526 pass through the connecting column through holes of the first transition plate 515 and the center hole of the reference surface contact plate 516 from top to bottom and then are connected with a measuring surface contact plate 518 through a second transition plate 517, the second transition plate 517 is arranged between the third connecting columns 526 and the measuring surface contact plate 518, the third connecting columns 526 are connected with the second transition plate 517 through fasteners, and the second transition plate 517 is connected with the measuring surface contact plate 518 through fasteners, so that the contact screw mounting plate 513, the third connecting columns 526, the second transition plate 517 and the measuring surface contact plate 518 are connected as a whole, which is defined as a whole Q.

[0032] As Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the figures, the center of the upper side of the displacement cylinder mounting plate 512 is provided with a displacement cylinder 540, and the inside of the displacement cylinder 540 is provided with a displacement piston rod 544. The lower end of the displacement piston rod 544 is connected with a piston rod connector 545 after penetrating through the cylinder body of the displacement cylinder 540 and the displacement cylinder mounting plate 512, the piston rod connector 545 is connected with a sensor mounting plate 514, the sensor mounting plate 514 is located inside the four second connecting columns 524, and three measuring sensors 532 are mounted on the circumferential side of the sensor mounting plate 514 through sensor mounting racks 530. The upper end of the displacement piston rod 544 is buckled with a cylinder position sensing block 543 after penetrating out of the cylinder body of the displacement cylinder 540, and the upper side of the displacement cylinder mounting plate 512 is provided with a first cylinder position sensor 541 and a second cylinder position sensor 542 through a sensor mounting bracket, the installation height of the first cylinder position sensor 541 and the second cylinder position sensor 542 is different, that is, the position signals detected by the first cylinder position sensor 541 and the second cylinder position sensor 542 are different. The position of the sensor mounting plate 514 can be changed through the displacement cylinder 540, and the position of the measuring sensor 532 is correspondingly changed, so that the transmission housing end face distance measuring device can measure two types of models with different end face distances, such as model A and model B, the distance from the measurement reference surface 22 to the measurement surface 24 of the model A and the model B is different, when the model A is measured, the displacement piston rod 544 of the displacement cylinder 540 is retracted upward, the sensor mounting plate 514 moves upward with the measuring sensor 532, the first cylinder position sensor 541 detects the signal of the cylinder position sensing block 543, and the controller executes the measurement program of the model A; when the model B is measured, the displacement piston rod 544 is extended downward, the sensor mounting plate 514 moves downward with the measuring sensor 532, the second cylinder position sensor 542 detects the signal of the cylinder position sensing block 543, and the controller executes the measurement program of the model B. The controller of the embodiment is preferably a PLC. The setting of the displacement cylinder 540 increases the application range of the application, and can reduce the equipment investment cost of the enterprise.

[0033] As shown in the figures, Figure 3 , Figure 4 and Figure 5 As shown in the figures, the upper side of the sensor mounting plate 514 is connected with guide columns 562, and the embodiment is preferably provided with three guide columns 562, the three guide columns 562 are distributed in a triangular shape, and the displacement cylinder mounting plate 512 is provided with guide sleeves 560 corresponding to the positions of the three guide columns 562, the three guide sleeves 560 all penetrate through the displacement cylinder mounting plate 512 from bottom to top, and the three guide columns 562 are slidingly inserted into the corresponding guide sleeves 560, and the guide columns 562 and the guide sleeves 560 can guarantee the linearity and stability of the upward and downward movement of the sensor mounting plate 514.

[0034] As shown in the figures, Figure 2 , Figure 3、 Figure 4 and Figure 5 As shown in the drawings, the embodiment preferably sets an installation sleeve 550 on the position corresponding to each first connecting column 520 on the measuring device installation plate 510, each installation sleeve 550 penetrates the measuring device installation plate 510 from top to bottom, the upper end of the first connecting column 520 penetrates the installation sleeve 550 and is locked and positioned in the vertical direction by a locking nut 552, an active gap is set between the first connecting column 520 and the inner wall of the installation sleeve 550, the lower end of the first connecting column 520 penetrates the displacement cylinder installation plate 512 and is locked and positioned in the vertical direction by a locking nut 552, the first floating spring 522 is sleeved on the first connecting column 520 between the measuring device installation plate 510 and the displacement cylinder installation plate 512, the upper end of the first floating spring 522 is fixedly connected with the measuring device installation plate 510, and the lower end of the first floating spring 522 is fixedly connected with the displacement cylinder installation plate 512. The first floating spring 522 makes the whole P float, so as to avoid the measurement error caused by the uneven placement of the workpiece, when the workpiece is uneven, the whole P can be self-adjusted within a certain range to adapt to the workpiece, so that the reference surface contact plate 516 can be fully attached to the measuring reference surface 22, and the measurement value is more accurate.

[0035] As shown in the drawings, Figure 3 、 Figure 4 and Figure 5 As shown in the drawings, the embodiment preferably sets a limiting sleeve 527 on the second transition plate 517, the limiting sleeve 527 is sleeved on the outside of the third connecting column 526, the length of the limiting sleeve 527 is less than the length of the third connecting column 526, that is, the upper end of the limiting sleeve 527 is away from the first transition plate 515 by a distance and does not contact the first transition plate 515, the limiting sleeve 527 can limit the upward movement distance of the whole Q and can prevent the measurement sensor 532 from being damaged, thereby protecting the measurement sensor 532.

[0036] As shown in the drawings, Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the third connecting column 526 located below the first transition plate 515 is sleeved with a floating thrust bearing 57. An active gap is provided between the third connecting column 526 and the hole wall of the connecting column via hole on the first transition plate 515. The third connecting column 526 and the limiting sleeve 527 located between the floating thrust bearing 57 and the second transition plate 517 are sleeved with a second floating spring 528. The upper end of the second floating spring 528 is fixedly connected with the floating thrust bearing 57, and the lower end of the second floating spring 528 is fixedly connected with the second transition plate 517. The second floating spring 528 makes the whole Q floating, so as to avoid the measurement error caused by the uneven placement of the workpiece. When the workpiece is uneven, the whole Q can be self-adjusted within a certain range to adapt to the workpiece, so that the measurement surface contact plate 518 can be fully attached to the measurement surface 24, and the measurement value is more accurate. The floating thrust bearing 57 can ensure that the whole Q has greater freedom, the floating effect is better, and there is a small circumferential direction movement, which can prevent the second floating spring 528 from completely clamping the whole P and the whole Q in the circumferential direction.

[0037] As shown in Figure 1 and Figure 3 As shown, a plurality of measurement device position adjusting blocks 62 are installed on the horizontal plate of the measurement device mounting frame 60 located on the side of the measurement device mounting plate 510. The present embodiment preferably has eight measurement device position adjusting blocks 62, two on each side of the measurement device mounting plate 510. The measurement device position adjusting block 62 includes a bolt mounting block 620 fixed on the horizontal plate of the measurement device mounting frame 60. The bolt mounting block 620 is threadedly connected with an adjusting bolt 622, which is horizontally arranged. The end of the adjusting bolt 622 abuts against the side wall of the measurement device mounting plate 510. By rotating the adjusting bolt 622, the length of the adjusting bolt 622 extending out of the bolt mounting block 620 can be changed, so as to adjust the position of the measurement device mounting plate 510 in the horizontal direction, so that the measurement device 50 corresponds to the transmission housing 20 below.

[0038] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the working process of the transmission housing end face distance measuring equipment is as follows:

[0039] Step 1, after manually scanning the two-dimensional code of the transmission housing 20, the transmission housing 20 is placed on the housing base 10;

[0040] Step 2, the device switch (not shown in the figure) is started, the moving piston rod 401 of the measuring device moving cylinder 40 is extended, the measuring device 50 is lowered, the reference surface contact plate 516 and the measuring surface contact plate 518 are in contact with the measuring reference surface 22 and the measuring surface 24 of the transmission housing 20 respectively, the measuring surface 24 lifts up the measuring surface contact plate 518, the contact point screw mounting plate 513 drives the contact point screw 533 to rise, the contact point screw 533 is in contact with the measuring head of the measuring sensor 532 and compresses the measuring head upward, the measuring sensor 532 measures the value and transmits the measured value to the controller, the obtained value is the difference value of the end face distance value of the standard workpiece, so that the measured value and the end face distance value of the standard workpiece are summed to accurately obtain the distance value between the measuring reference surface 22 and the measuring surface 24 of the transmission housing 20, the value is calculated by the measuring program in the controller, and then directly displayed by the display (the display is preferably a touch screen in the embodiment) of the device, so that the operator can simply and clearly obtain the end face distance value of the transmission housing 20.

[0041] In step 1, the model of the transmission housing 20 can be obtained by scanning the two-dimensional code on the transmission housing 20, if the transmission housing 20 is model A, the displacement piston rod 544 of the displacement cylinder 540 is retracted, if the transmission housing 20 is model B, the displacement piston rod 544 of the displacement cylinder 540 is extended, the sensor mounting plate 514 changes position with the extension or retraction of the displacement piston rod 544, the measuring sensor 532 changes position, the signals of the first cylinder position sensor 541 and the second cylinder position sensor 542 also change, the controller runs the measurement program matched with the model, the measuring sensor 532 obtains the end face distance value of the model, and transmits the value to the controller, the controller calculates the end face distance value of the current measurement workpiece according to the end face distance value of the standard workpiece in the program, so as to meet the measurement of two different models.

[0042] Step 3, after obtaining the end face distance value, the moving piston rod 401 of the measuring device moving cylinder 40 is retracted, the measuring device 50 is raised and reset, so as to complete the measurement of the end face distance of the transmission housing 20.

[0043] It should be noted that:

[0044] Before the transmission housing end face distance measuring device is put into use, the standard workpiece is used for calibration, that is, the end face distance of the standard workpiece is measured, the measuring sensor 532 is compressed, the position of the measuring sensor 532 when the standard workpiece is measured is recorded, and the position is marked as zero point in the program of the controller, so that when the ordinary workpiece is measured, the value measured by the measuring sensor 532 is the difference between the end face distance of the measured workpiece and the end face distance of the standard workpiece, so that the value of the end face distance of the measured workpiece can be accurately obtained. Because the end face distances of the two types of workpieces are different, the zero point marking positions in the measuring programs corresponding to the two types of workpieces and the values of the end face distances of the standard workpieces are different, so two different measuring programs need to be started when the two types of workpieces are measured.

[0045] In summary, the transmission housing end face distance measuring device can accurately measure the distance between the two end faces of the transmission housing, has high measuring accuracy, high measuring efficiency and good measuring reproducibility, and can effectively ensure the service life of the transmission.

[0046] The present application is not limited to the above specific embodiments, and various modifications made by those skilled in the art without creative labor, based on the above concept, all fall within the protection scope of the present application.

Claims

1. A transmission housing end face distance measuring apparatus, characterized by, The utility model provides a kind of measuring device, including measuring device rack and the sliding installation of measuring device on measuring device rack, the lower of measuring device is equipped with shell base;Measuring device includes installation frame, measuring sensor is installed in installation frame, contact screw mounting plate is movably arranged in installation frame, contact screw mounting plate is equipped with contact screw on the position corresponding measuring sensor;The lower end of installation frame is connected with reference surface contact plate, contact screw mounting plate is located on the upper side of reference surface contact plate, the lower side of contact screw mounting plate is fixedly connected with third connecting column, third connecting column is connected with measuring surface contact plate after sliding through reference surface contact plate; The top of measuring device rack is equipped with measuring device moving cylinder, the moving piston rod of measuring device moving cylinder extends into measuring device rack and connects mounting block, operating strip hole is equipped on the side wall of measuring device rack, mounting block is connected with measuring device mounting rack after extending operating strip hole, measuring device is installed on measuring device mounting rack;The side wall of measuring device rack on both sides of operating strip hole is equipped with a measuring device guide rail respectively, measuring device mounting rack is fixedly connected with the slider of two measuring device guide rails; The middle part of measuring device mounting rack is equipped with mounting hole, measuring device mounting plate is overlapped on the upper side of measuring device mounting rack, first connecting column is connected with measuring device mounting plate, first connecting column passes through mounting hole and is locked and positioned by lock nut, there is movable gap between first connecting column and the inner wall of mounting hole, first floating spring is sleeved on first connecting column between measuring device mounting plate and installation frame; Installation frame includes displacement cylinder mounting plate connected with first connecting column, the lower side of displacement cylinder mounting plate is connected with second connecting column, and second connecting column connects reference surface contact plate;Displacement cylinder mounting plate is installed on displacement cylinder, and the lower end of displacement piston rod of displacement cylinder is connected with sensor mounting plate, and measuring sensor is installed on the circumferential side of sensor mounting plate through sensor mounting frame; First transition plate is connected between reference surface contact plate and second connecting column, reference surface contact plate is annular plate, first transition plate is equipped with connecting column through-hole for third connecting column to pass through in the position corresponding third connecting column, and there is movable gap between third connecting column and the hole wall of connecting column through-hole;Second transition plate is connected between third connecting column and measuring surface contact plate, limiting sleeve is connected on second transition plate, limiting sleeve is sleeved on the outside of third connecting column and its length is less than the length of third connecting column, floating thrust bearing is sleeved on third connecting column on the lower side of first transition plate, second floating spring is sleeved on third connecting column and limiting sleeve between floating thrust bearing and second transition plate. ​ 2. The transmission case end face distance measuring apparatus according to claim 1, characterized by, The side wall of the lower end of the operation strip hole (34) is clamped with a limiting mounting frame (42), the limiting mounting frame (42) is installed with a limiting screw (44) and a buffer (46); the side wall of the side of the measuring device rack (30) without the measuring device guide rail (68) is installed with an upper limiting sensor (70) and a lower limiting sensor (72), and the mounting frame connecting block (64) is installed with a positioning screw (66).

3. The transmission case end face distance measuring apparatus according to claim 1, characterized by, The upper end of the displacement piston rod (544) is buckled with a cylinder position sensing block (543), the upper side of the displacement cylinder mounting plate (512) is installed with a first cylinder position sensor (541) and a second cylinder position sensor (542) through a sensor mounting support, and the installation height of the first cylinder position sensor (541) and the second cylinder position sensor (542) is different.

4. The transmission case end face distance measuring apparatus according to claim 1, characterized by, The upper side of the sensor mounting plate (514) is connected with a guide column (562), the displacement cylinder mounting plate (512) is installed with a guide sleeve (560) penetratingly, and the guide column (562) is slidingly inserted into the guide sleeve (560).

5. The transmission case end face distance measuring apparatus according to claim 1, characterized by, The measuring device mounting rack (60) located on the side of the measuring device mounting plate (510) is installed with a plurality of measuring device position adjusting blocks (62), the measuring device position adjusting block (62) comprises a bolt mounting block (620) fixed on the measuring device mounting rack (60), the bolt mounting block (620) is threadedly connected with an adjusting bolt (622), and the end of the adjusting bolt (622) abuts against the side wall of the measuring device mounting plate (510).

Images