CN112432750B - Vibration testing mechanism for automobile torque sensor - Google Patents
Vibration testing mechanism for automobile torque sensor Download PDFInfo
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- CN112432750B CN112432750B CN202011139446.4A CN202011139446A CN112432750B CN 112432750 B CN112432750 B CN 112432750B CN 202011139446 A CN202011139446 A CN 202011139446A CN 112432750 B CN112432750 B CN 112432750B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
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Abstract
The application relates to a vibration testing mechanism for an automobile torque sensor, which comprises a vibration station support and an up-down moving frame, wherein a testing tool arranged on an indexing turntable can be transmitted to the lower part of the up-down moving frame, and the automobile torque sensor to be tested is assembled on the testing tool; the bottom fixed mounting who reciprocates the frame has horizontal mounting panel, rotates on the horizontal mounting panel to be installed the horizontally vibration carousel, and the upper edge of vibration carousel, lower limb are equidistant to be provided with four wedges, four trapezoidal recesses. The test system has the advantages that the automatic test of the automobile torque sensor can be realized, and the effects of the simulation of the real vibration and the accurate test of the torque performance in six directions can be realized.
Description
Technical Field
The application relates to the field of testing of torque sensors, in particular to a vibration testing mechanism for an automobile torque sensor.
Background
In the production process of the automobile torque sensor, the quality can be ensured only through various tests, and the test items mainly comprise vibration frequency, amplitude, direction, torque feedback and the like. With the development and progress of automobile technology, the testing precision and the use requirement of the automobile torque sensor are higher and higher. At present, the degree of automation of the function test of the product is not high in China, and high-end automatic test equipment basically depends on import, so that huge capital investment is brought. With the rapid disappearance of the population dividends in China, great challenges are caused to the production cost of enterprises.
In the prior art, the test of the automobile torque sensor product mainly has two modes: (1) manual semi-automatic testing: the product is placed in a semi-automatic testing device by an operator and then taken out by the operator after testing. This method requires a lot of operators, operates the equipment for a long time, and has low safety. (2) full-automatic testing: the mode of a plurality of air cylinders is adopted, each air cylinder drives vibration testing in one direction, the mode requires six air cylinders, the number of the magnetic limit switches is twelve, and the magnetic limit switches are magnetic elements, so that the magnetic limit switches have interference effect on testing results. Aiming at the manual semi-automatic completion mode, namely a product corresponds to a function test board, due to the inconsistency of manual operation, potential hazards such as misdetection or missing detection of the product are easily caused, the quality of the product is influenced, and meanwhile, the resource waste is also implied.
In view of the above-mentioned related technologies, the inventor thinks that with the continuous development of the electronic technology industry, the functional requirements on the test equipment are more and more, and the upgrading from the traditional manual test to the automatic test becomes a trend of the technology development.
Disclosure of Invention
In order to reach the purpose to the automatic test of car torque sensor, and realize the accurate test of the simulation reality vibration and the moment of torsion performance of six directions, this application provides a vibration accredited testing organization for car torque sensor.
The application provides a vibration testing mechanism for car torque sensor adopts following technical scheme:
a vibration testing mechanism for an automobile torque sensor comprises a vibration station support and an up-and-down moving frame, wherein the up-and-down moving frame is connected to the side part of the vibration station support in a sliding manner along the vertical direction, a testing tool arranged on an indexing turntable can be transmitted to the position below the up-and-down moving frame, and the automobile torque sensor to be tested is assembled on the testing tool;
a first air cylinder for driving the up-down moving frame to vertically move is mounted on the vibration station support, a horizontal mounting plate is fixedly mounted at the bottom of the up-down moving frame, lower support legs are fixedly connected to four corners of the horizontal mounting plate respectively, and the four lower support legs can move downwards until the four lower support legs are arranged at the four corners of the test tool in an overhead mode;
the horizontal mounting plate is rotatably provided with a horizontal vibration turntable and a vertical hollow main shaft, the vertical moving frame is provided with a first stepping motor for driving the hollow main shaft to rotate, the horizontal mounting plate is provided with a second stepping motor for driving the vibration turntable to rotate, the lower end of the hollow main shaft penetrates through a mounting hole of the vibration turntable and is connected with a tensioning shaft, and the tensioning shaft moves downwards and can be in tight fit with an assembling hole of the automobile torque sensor to be measured;
the upper edge and the lower edge of the vibration turntable are provided with four wedge blocks and four trapezoidal grooves at equal intervals, the wedge blocks positioned on the upper side and the lower side correspond to the vertical positions of the trapezoidal grooves one by one, the bottom surfaces of the corresponding wedge blocks are aligned with the bottom surfaces of the trapezoidal grooves, and the wedge blocks positioned on the same side and the trapezoidal grooves are alternately arranged; the lower edge of the vibration turntable is provided with a circular guide groove which is concentric with the vibration turntable, and the inner side of the circular guide groove is provided with five wedge-shaped grooves at equal intervals;
the four lower supporting legs are horizontally hinged with a horizontal rotating frame, the top and the bottom of the other end of the horizontal rotating frame are respectively provided with a vertical roller and a horizontal knocking head, the horizontal knocking heads elastically prop against the side wall of the testing tool, and the vertical rollers roll along the inner side wall of the circular guide groove and the inner side walls of the five wedge-shaped grooves; when the vertical rollers on the four horizontal rotating frames roll to the inner side walls of the five wedge-shaped grooves in sequence, the horizontal knocking heads on the four horizontal rotating frames knock the base plates on the side walls of the test tool once along the X positive direction, the X negative direction, the Y positive direction and the Y negative direction in sequence; cylinder two is all installed to two relative sides of horizontal installation board, the removal slider passes through the side horizontal slip of cylinder two drive along horizontal installation board, it has vertical removal frame to move along vertical direction sliding connection on the slider, the top of vertical removal frame, two horizontal gyro wheels are installed respectively to the bottom, two vertical striking heads, two horizontal gyro wheels on the vertical removal frame are vertical arranging, and follow the top edge at vibration carousel respectively, the top surface of the wedge on the lower limb, the bottom surface roll of trapezoidal recess, two vertical striking heads on the vertical removal frame are vertical arranging, and the elasticity roof pressure is on the side ear of test fixture lateral wall, horizontal gyro wheel on two vertical removal frames rolls off the wedge top surface at vibration carousel edge in proper order, then the vertical striking head on two vertical removal frames is along the Z positive direction in proper order, the side ear of test fixture lateral wall is once knocked to the Z negative direction.
By adopting the technical scheme, when an automobile torque sensor product to be tested is tested, the product is transmitted to a set position through the operation of the dividing disc, the piston rod of the first air cylinder extends and drives the up-down moving frame to move downwards, the four lower supporting legs below the up-down moving frame move downwards and are arranged at four corners of the testing tool in an overhead mode, and meanwhile the tensioning shaft connected with the lower end of the hollow main shaft moves downwards to be in tight fit with the assembling hole of the automobile torque sensor to be tested in an expanding mode. Vertical gyro wheel on four horizontal rotating frames respectively with the inboard wall roll fit of the circular guide way at vibration carousel lower limb, the level is beaten the head and is elastically pushed up respectively on the backing plate of four lateral walls of test fixture, the piston rod of two cylinders two extends respectively and drives the side horizontal slip that removes the slider along horizontal mounting plate, it is close to the edge of vibration carousel to remove the slider drive vertical simultaneously, two horizontal gyro wheels on the vertical removal frame centre gripping respectively in the upper limb of vibration carousel, the lower limb, two vertical beat heads on the vertical removal frame are respectively on the side ear of vibration carousel lateral wall in elastic top pressure, thereby accomplish the automobile torque sensor product that awaits measuring, test fixture, the assembly operation of four horizontal rotating frames and two vertical removal frames, and realize the vibration switching action of Z axle direction. The second stepping motor is started and drives the vibration turntable to rotate, and when the vertical idler wheels on the four horizontal rotating frames sequentially roll to the inner side walls of the five wedge-shaped grooves, the horizontal knocking heads on the four horizontal rotating frames sequentially knock a base plate on the side wall of the test tool once along the X positive direction, the X negative direction, the Y positive direction and the Y negative direction; when the horizontal idler wheels on the two vertical moving frames sequentially roll away from the top surfaces of the wedge blocks at the edges of the vibrating turnplates, the vertical knocking heads on the two vertical moving frames sequentially knock the side lugs of the side walls of the testing tool once along the Z positive direction and the Z negative direction, so that the aim of simulating real vibration of the automobile torque sensor to be tested is fulfilled. When the stepping motor is started and drives the hollow main shaft to rotate, the hollow main shaft drives the tensioning shaft which is in tensioning fit with the automobile torque sensor to be tested to rotate, and therefore the purpose of simulating a torque test on the automobile torque sensor to be tested is achieved. The vibration testing mechanism completely realizes automatic testing, has strong compatibility, and the testing tool is suitable for products of different models and specifications, greatly improves the testing efficiency of the products, and improves the quality and the reliability of the products.
Optionally, it installs cylinder three to reciprocate the frame top, movable mounting has the apical axis in the cavity main shaft, and the upper portion of apical axis passes through shaft coupling looks transmission connection with the upper end of cavity main shaft, but piston rod downshifting of cylinder three top in the upper end of apical axis, and the lower extreme of apical axis is connected with round platform form slider, the tight axle that rises includes the check lock with cavity main shaft lower extreme fixed connection's fixed sleeve and a plurality of annular arrangement in the fixed sleeve lateral wall, the check lock all along horizontal radial sliding connection in fixed sleeve's lateral wall, the inside of a plurality of check lock all have with the periphery wall matched with inclined plane of round platform form slider, the integrative cover in the outside of a plurality of check lock is equipped with the rubber circle.
By adopting the technical scheme, the piston rod of the third air cylinder is extended and is arranged at the upper end of the top shaft in a top-mounted mode, the lower end of the top shaft drives the circular truncated cone-shaped sliding block to move downwards, the outer peripheral wall of the circular truncated cone-shaped sliding block is matched with the inclined surface of the inner side part of the locking block, the locking block horizontally and radially slides along the side wall of the fixed sleeve, the locking blocks slide outwards and tension the rubber ring, and therefore the tension shaft is in expansion tight fit with the assembling hole of the automobile torque sensor to be measured, and the piston rod of the third air cylinder contracts and is separated from the upper end of the top shaft; the upper part of the top shaft is in transmission connection with the upper end of the hollow main shaft through a coupler, so that the aim of linkage and separation of power transmission between the hollow main shaft and the top shaft is fulfilled.
Optionally, a piston rod of the second cylinder can drive the vertical moving frame to horizontally move along the tangential direction of the circle of the vibrating turntable, that is, two horizontal rollers on the vertical moving frame can be separated from or clamped at the edge of the vibrating turntable, and two vertical knocking heads on the vertical moving frame can be separated from or clamped at side lugs on the test tool.
Through adopting above-mentioned technical scheme, the piston rod extension of cylinder two drives the movable sliding block and slides along horizontal installation board's side, and the movable sliding block drives vertical removal frame promptly and is close to it along the circle tangential direction of vibration carousel, and two horizontal gyro wheels centre gripping promptly are in the upper edge and the lower limb of vibration carousel, and two vertical hits the head promptly and centre gripping the side ear on test fixture promptly, and the piston rod shrink of cylinder two accomplishes promptly and breaks away from the operation to realize Z to the switching action of vibration.
Optionally, the testing tool is provided with a first cable connecting head and a second cable connecting head, one end of the first cable connecting head is in communication connection with one end of the second cable connecting head through a cable, the first cable connecting head is slidably mounted on the testing tool, the other end of the first cable connecting head can slide to a communication joint of the automobile torque sensor to be tested until the first cable connecting head and the second cable connecting head are in communication connection with the testing equipment in an inserting connection mode.
By adopting the technical scheme, the communication joint of the automobile torque sensor to be tested is in communication connection with the testing equipment through the cable connecting head I and the cable connecting head II, the automobile torque sensor is controlled to automatically supply power and communicate through a PLC program, the testing equipment starts testing according to set testing steps, testing results are uploaded to a designated digital server, and large-batch data analysis control is carried out through computer software.
Optionally, a cylinder four and a cylinder five are installed at the bottom of the vibration station support, a piston rod of the cylinder four is connected with a test connecting head in communication connection with a test device, the piston rod of the cylinder four can drive the test connecting head to be in plug-in connection with the other end of the cable connecting head two, a rocker is horizontally hinged to the test tool, one end of the rocker is connected with a piston rod of the cylinder five, a strip-shaped groove is formed in the other end of the rocker, a guide wheel matched with the strip-shaped groove is arranged on the cable connecting head, and the piston rod of the cylinder five drives the cable connecting head to be close to or far away from a communication joint of the automobile torque sensor to be tested.
By adopting the technical scheme, the piston rod of the cylinder V contracts and drives one end of the rocker to move, the guide wheel slides along the strip-shaped groove on the rocker, and the cable connecting head approaches to the communication joint of the automobile torque sensor to be detected and realizes the plug-in communication of the two; and a piston rod of the cylinder IV extends and drives the test connecting head to approach the cable connecting head II, and the two are in plug-in communication.
Optionally, the up-down moving frame is slidably mounted on the side of the vibration station support through a guide rail assembly, a piston rod of the first air cylinder is connected with the top of the up-down moving frame, and a cable crawler belt is connected between the up-down moving frame and the vibration station support.
By adopting the technical scheme, the guidance performance and the position precision of the vertical sliding of the up-and-down moving frame along the side part of the vibration station support are higher, and all communication cables, gas circuit pipelines and the like are arranged in the cable track.
Optionally, the hollow spindle is in transmission connection with the first stepping motor through a synchronous pulley mechanism, and the vibration turntable is in transmission connection with the second stepping motor through a synchronous pulley mechanism.
Through adopting above-mentioned technical scheme, synchronous pulley mechanism can realize the power transmission function of the two on the one hand, and on the other hand guarantees the driven synchronism of the two.
Optionally, a grating ruler is installed on the hollow main shaft, a reading head and a grating sensor are arranged on one side of the grating ruler, and the grating sensor is used for detecting the rotation angle of the grating ruler.
By adopting the technical scheme, the grating sensor collects the position information of the hollow main shaft in real time, the grating ruler is used for accurately measuring the rotation angle of the hollow main shaft, and the numerical value of the rotation angle is read by the reading head.
Optionally, the horizontal knocking head is a bolt horizontally and movably mounted on the horizontal rotating frame, an adjusting nut is connected to the bolt in a threaded manner, a spring sleeved on the bolt is arranged between the adjusting nut and the horizontal rotating frame in a cushioning manner, and the end of the bolt is in a spherical shape.
Through adopting above-mentioned technical scheme, the horizontal head of striking is the bolt, thereby revolves the adjusting nut who twists on the bolt and adjusts spring's pretightning force, and the bolt tip of sphericity is used for knocking the backing plate of test fixture lateral wall to be convenient for adjust the dynamics of strikeing.
Optionally, the two vertical knocking heads on the vertical moving frame are vertically movably mounted bolts, the two bolts are located on the same vertical line, a pressing plate is mounted at the end of each bolt, and a spring sleeved on each bolt is arranged between each pressing plate and the vertical moving frame in a cushioning mode.
Through adopting above-mentioned technical scheme, thereby revolve the nut of twisting bolt tip and adjust spring's pretightning force, the clamp plate of the bolt other end is used for knocking the side ear of test fixture lateral wall to be convenient for adjust the dynamics of knocking.
In summary, the present application includes at least one of the following beneficial technical effects:
1. this application is when testing the automobile torque sensor product that awaits measuring, transmit this product to setting for the position through the graduated disk operation, the piston rod extension of cylinder one and drive reciprocate the frame downstream, the piston rod extension respectively of two cylinders two and the drive removes the side horizontal slip of slider along horizontal installation board, it is close to the edge of vibration carousel to move the vertical slider drive vertical removal frame simultaneously, two horizontal gyro wheels on the vertical removal frame centre gripping respectively in the upper edge of vibration carousel, the lower limb, two vertical heads of knocking on the vertical removal frame elasticity roof pressure respectively on the side ear of vibration carousel lateral wall, thereby accomplish the automobile torque sensor product that awaits measuring, the test fixture, the assembly operation of four horizontal rotary frame and two vertical removal frames, and realize the vibration switching action of Z axial direction. The second stepping motor is started and drives the vibration turntable to rotate, and when the vertical idler wheels on the four horizontal rotating frames sequentially roll to the inner side walls of the five wedge-shaped grooves, the horizontal knocking heads on the four horizontal rotating frames sequentially knock a base plate on the side wall of the test tool once along the X positive direction, the X negative direction, the Y positive direction and the Y negative direction; when the horizontal idler wheels on the two vertical moving frames sequentially roll away from the top surfaces of the wedge blocks at the edges of the vibrating turnplates, the vertical knocking heads on the two vertical moving frames sequentially knock the side lugs of the side walls of the testing tool once along the Z positive direction and the Z negative direction, so that the aim of simulating real vibration of the automobile torque sensor to be tested is fulfilled. When the stepping motor is started and drives the hollow main shaft to rotate, the hollow main shaft drives the tensioning shaft which is in tensioning fit with the automobile torque sensor to be tested to rotate, so that the aim of simulating a torque test on the automobile torque sensor to be tested is fulfilled; the vibration testing mechanism completely realizes automatic testing, has strong compatibility, and the testing tool is suitable for products of different models and specifications, thereby greatly improving the testing efficiency of the products and improving the quality and reliability of the products;
2. the piston rod of the third air cylinder is extended and arranged at the upper end of the top shaft in an overhead mode, the lower end of the top shaft drives the circular truncated cone-shaped sliding block to move downwards, the outer peripheral wall of the circular truncated cone-shaped sliding block is matched with the inclined surface of the inner side part of the locking block, the locking block horizontally and radially slides along the side wall of the fixing sleeve, the locking blocks slide outwards and tension the rubber ring, and therefore the tensioning shaft is in tight fit with an assembling hole of an automobile torque sensor to be measured in an expanding mode, and the piston rod of the third air cylinder contracts and is separated from the upper end of the top shaft; the upper part of the top shaft is in transmission connection with the upper end of the hollow main shaft through a coupler, so that the aim of linkage and separation of power transmission between the hollow main shaft and the top shaft is fulfilled;
3. the communication connector of the automobile torque sensor to be tested is in communication connection with the testing equipment through the first cable connecting head and the second cable connecting head, the automobile torque sensor is controlled to automatically supply power and communicate through a PLC program, the testing equipment starts testing according to set testing steps, testing results are uploaded to an appointed digital server, and large-batch data analysis and control are carried out through computer software.
Drawings
Fig. 1 is a schematic perspective view of a vibration testing mechanism according to an embodiment of the present application.
Fig. 2 is an assembly schematic view of a hollow spindle according to an embodiment of the present application.
FIG. 3 is an assembly diagram of an automotive torque sensor to be tested according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a vibrating turntable according to an embodiment of the present application.
Fig. 5 is a schematic view of the installation of the vibrating turntable according to the embodiment of the application.
Description of reference numerals: 1. vibrating the station support; 2. moving the frame up and down; 3. testing the tool; 4. a first cylinder; 5. a cable track; 6. a third air cylinder; 7. a horizontal mounting plate; 8. vibrating the turntable; 9. a hollow main shaft; 10. a first stepping motor; 11. a second stepping motor; 12. a lower leg; 13. a second air cylinder; 14. a grating scale; 15. a read head; 16. a coupling; 17. an automobile torque sensor to be measured; 18. a tensioning shaft; 19. a horizontal rotating frame; 20. a vertical moving rack; 21. a vertical roller; 22. a horizontal tapping head; 23. a horizontal roller; 24. a vertical tapping head; 25. moving the slide block; 26. a first cable connecting joint; 27. a cable coupling head II; 28. testing the coupling head; 29. a communication connector; 30. a cylinder IV; 31. a fifth cylinder; 32. a wedge block; 33. a trapezoidal groove; 34. a circular guide groove; 35. a wedge-shaped groove; 36. a rocker; 37. a strip-shaped groove; 38. a guide wheel; 39. mounting holes; 40. a top shaft; 41. a lateral ear; 42. a backing plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a vibration test mechanism for an automobile torque sensor. Referring to fig. 1, the vibration testing mechanism comprises a vibration station support 1 and an up-down moving frame 2, wherein the vibration station support 1 and the up-down moving frame 2 are formed by splicing and fixing a plurality of steel plates, the up-down moving frame 2 is connected to the side part of the vibration station support 1 in a sliding manner along the vertical direction, the up-down moving frame 2 is installed on the side part of the vibration station support 1 in a sliding manner through a guide rail assembly, a testing tool 3 installed on an indexing turntable can be transmitted to the lower part of the up-down moving frame 2, and an automobile torque sensor 17 to be tested is assembled on the testing tool 3; a first cylinder 4 for driving the up-down moving frame 2 to vertically move is mounted on the vibration station support 1, a piston rod of the first cylinder 4 is connected with the top of the up-down moving frame 2, a cable crawler 5 is connected between the up-down moving frame 2 and the vibration station support 1, and the cable crawler 5 is used for accommodating all communication cables, gas circuit pipelines and the like; the bottom of the up-down moving frame 2 is fixedly provided with a horizontal mounting plate 7, four corners of the horizontal mounting plate 7 are respectively and fixedly connected with lower supporting legs 12, and the four lower supporting legs 12 can move downwards until being arranged at the four corners of the test tool 3 in an overhead mode.
Referring to fig. 1, a horizontal vibration turntable 8 and a vertical hollow spindle 9 are rotatably mounted on a horizontal mounting plate 7, a first stepping motor 10 for driving the hollow spindle 9 to rotate is mounted on an up-down moving frame 2, a second stepping motor 11 for driving the vibration turntable 8 to rotate is mounted on the horizontal mounting plate 7, the hollow spindle 9 and the first stepping motor 10 are in transmission connection through a synchronous pulley mechanism, and the vibration turntable 8 and the second stepping motor 11 are in transmission connection through the synchronous pulley mechanism. A grating ruler 14 is installed on the hollow main shaft 9, a reading head 15 and a grating sensor are arranged on one side of the grating ruler 14, and the grating sensor is used for detecting the rotation angle of the grating ruler 14. The lower end of the hollow main shaft 9 penetrates through a mounting hole 39 of the vibration turntable 8 and is connected with a tensioning shaft 18, and the tensioning shaft 18 moves downwards and can be in tensioning and tight fit with an assembling hole of the automobile torque sensor 17 to be measured.
Referring to fig. 2, cylinder three 6 is installed at the top of up-down moving frame 2, movable mounting has a jack-up shaft 40 in the cavity main shaft 9, the upper portion of jack-up shaft 40 passes through shaft coupling 16 with the upper end of cavity main shaft 9 and is connected mutually in the transmission, but cylinder three 6's piston rod downward movement overhead in the upper end of jack-up shaft 40, the lower extreme of jack-up shaft 40 is connected with round platform form slider, tensioning shaft 18 includes the fixed sleeve and a plurality of annular row's of fixed connection with cavity main shaft 9 lower extreme fixed connection in the latch segment of fixed sleeve lateral wall, the latch segment all along horizontal radial sliding connection in the fixed sleeve's lateral wall, the inside portion of a plurality of latch segments all has the inclined plane with the matched with of the periphery wall of round platform form slider, the integrative cover in the outside portion of a plurality of latch segments is equipped with the rubber circle.
Referring to fig. 3, a cylinder four 30 and a cylinder five 31 are installed at the bottom of the vibration station support 1, a piston rod of the cylinder four 30 is connected with a test connecting head 28 in communication connection with a test device, the piston rod of the cylinder four 30 can drive the test connecting head 28 to be in plug-in connection with the other end of the cable connecting head two 27, a rocker 36 is horizontally hinged on the test tool 3, one end of the rocker 36 is connected with a piston rod of the cylinder five 31, a strip-shaped groove 37 is formed in the other end of the rocker 36, a guide wheel 38 matched with the strip-shaped groove 37 is arranged on the cable connecting head one 26, and the piston rod of the cylinder five 31 drives the cable connecting head one 26 to be close to or far away from a communication joint 29 of the automobile torque sensor 17 to be tested. The test tool 3 is provided with a first cable connecting head 26 and a second cable connecting head 27, one end of the first cable connecting head 26 is in communication connection with one end of the second cable connecting head 27 through a cable, the first cable connecting head 26 is slidably mounted on the test tool 3, the other end of the first cable connecting head 26 can slide to a communication connector 29 of the automobile torque sensor 17 to be tested until the other end of the first cable connecting head 26 is in plug-in communication, and the second cable connecting head 27 is in communication connection with the test equipment. The automobile torque sensor controls automatic power supply and communication through a PLC program, the test equipment starts testing according to set test steps, test results are uploaded to a designated digital server, and large-batch data analysis control is carried out through computer software.
Referring to fig. 4, four wedge blocks 32 and four trapezoidal grooves 33 are arranged on the upper edge and the lower edge of the vibrating turntable 8 at equal intervals, the wedge blocks 32 on the upper side and the lower side correspond to the trapezoidal grooves 33 in the vertical positions one by one, the bottom surfaces of the corresponding wedge blocks 32 are aligned with the bottom surfaces of the trapezoidal grooves 33, and the wedge blocks 32 and the trapezoidal grooves 33 on the same side are arranged alternately; the lower edge of the vibration turntable 8 is provided with a circular guide groove 34 concentrically arranged with the vibration turntable, and five wedge-shaped grooves 35 are arranged on the inner side of the circular guide groove 34 at equal intervals.
Referring to fig. 5, horizontal rotating frames 19 are horizontally hinged on the four lower supporting legs 12, vertical rollers 21 and horizontal knocking heads 22 are respectively installed at the top and the bottom of the other end of each horizontal rotating frame 19, the horizontal knocking heads 22 elastically press against a base plate 42 on the side wall of the test fixture 3, and the vertical rollers 21 roll along the inner side wall of the circular guide groove 34 and the inner side walls of the five wedge-shaped grooves 35. The horizontal knocking head 22 is a bolt horizontally movably mounted on the horizontal rotating frame 19, an adjusting nut is connected to the bolt in a threaded manner, a spring sleeved on the bolt is arranged between the adjusting nut and the horizontal rotating frame 19 in a cushioning manner, and the end of the bolt is in a spherical shape. When the vertical rollers 21 on the four horizontal rotating frames 19 roll to the inner side walls of the five wedge-shaped grooves 35 in sequence, the horizontal knocking heads 22 on the four horizontal rotating frames 19 knock the side walls of the test fixture 3 once along the X positive direction, the X negative direction, the Y positive direction and the Y negative direction in sequence.
Referring to fig. 5, a second cylinder 13 and a moving slider 25 are installed on two opposite sides of the horizontal mounting plate 7, the moving slider 25 is driven by the second cylinder 13 to horizontally slide along the side of the horizontal mounting plate 7, a vertical moving frame 20 is connected to the moving slider 25 in a sliding manner along a vertical direction, two horizontal rollers 23 and two vertical striking heads 24 are installed at the top and the bottom of the vertical moving frame 20 respectively, a piston rod of the second cylinder 13 can drive the vertical moving frame 20 to horizontally move along a tangential direction of a circle of the vibrating turntable 8, that is, the two horizontal rollers 23 on the vertical moving frame 20 can be separated from or clamped at the edge of the vibrating turntable 8, and the two vertical striking heads 24 on the vertical moving frame 20 can be separated from or clamped at the side lug 41 on the testing fixture 3. The two horizontal rollers 23 on the vertical moving frame 20 are vertically arranged and roll along the top surfaces of the wedge blocks 32 on the upper edge and the lower edge of the vibrating turntable 8 and the bottom surfaces of the trapezoidal grooves 33, the two vertical striking heads 24 on the vertical moving frame 20 are vertically arranged and elastically pressed on the side lugs 41 on the side wall of the test fixture 3. Two vertical knocking heads 24 on the vertical moving frame 20 are vertically movably mounted bolts, the two bolts are located on the same vertical line, a pressing plate is mounted at the end of each bolt, and a spring sleeved on the bolts is arranged between the pressing plate and the vertical moving frame 20 in a cushioning mode. When the horizontal rollers 23 on the two vertical moving frames 20 sequentially roll off the top surface of the wedge block 32 at the edge of the vibrating turntable 8, the vertical knocking heads 24 on the two vertical moving frames 20 sequentially knock the side lugs 41 on the side wall of the testing tool 3 once along the positive Z direction and the negative Z direction.
The implementation principle of the vibration testing mechanism for the automobile torque sensor is as follows: the automobile torque sensor 17 product to be tested is transmitted to a set position through the operation of the dividing disc, so as to start the test work of the product: and a piston rod of the first air cylinder 4 extends and drives the up-down moving frame 2 to move downwards, four lower supporting legs 12 below the up-down moving frame 2 move downwards and are arranged at four corners of the testing tool 3 in an overhead mode, and meanwhile, a tensioning shaft 18 connected with the lower end of the hollow main shaft 9 moves downwards to be in tight expansion fit with an assembling hole of an automobile torque sensor 17 to be tested. The vertical rollers 21 on the four horizontal rotating frames 19 are respectively in rolling fit with the inner side walls of the circular guide grooves 34 on the lower edge of the vibrating turntable 8, the horizontal knocking heads 22 are respectively and elastically pressed on the base plates 42 on the four side walls of the testing tool 3, the piston rods of the two cylinders 13 are respectively extended and drive the moving slide block 25 to horizontally slide along the side edges of the horizontal mounting plate 7, meanwhile, the moving slide block 25 drives the vertical moving frame 20 to approach the edge of the vibrating turntable 8, the two horizontal rollers 23 on the vertical moving frame 20 are respectively clamped on the upper edge and the lower edge of the vibrating turntable 8, and the two vertical knocking heads 24 on the vertical moving frame 20 are respectively and elastically pressed on the side lugs 41 on the side walls of the vibrating turntable 8, so that the assembling operation of the automobile torque sensor 17 product to be tested, the testing tool 3, the four horizontal rotating frames 19 and the two vertical moving frames 20 is completed, and the vibration switching action in the Z-axis direction is realized. The second stepping motor 11 is started and drives the vibration turntable 8 to rotate, and when the vertical rollers 21 on the four horizontal rotating frames 19 sequentially roll to the inner side walls of the five wedge-shaped grooves 35, the horizontal knocking heads 22 on the four horizontal rotating frames 19 knock the base plate 42 on the side wall of the test tool 3 once in the X positive direction, the X negative direction, the Y positive direction and the Y negative direction; when the horizontal rollers 23 on the two vertical moving frames 20 sequentially roll away from the top surface of the wedge block 32 at the edge of the vibrating turntable 8, the vertical knocking heads 24 on the two vertical moving frames 20 sequentially knock the side lugs 41 on the side wall of the testing tool 3 once along the Z positive direction and the Z negative direction, so that the aim of simulating real vibration of the automobile torque sensor 17 to be tested is fulfilled. The first stepping motor 10 is started and drives the hollow main shaft 9 to rotate, and the hollow main shaft 9 drives the tensioning shaft 18 which is in tensioning fit with the automobile torque sensor 17 to be tested to rotate, so that the aim of simulating a torque test on the automobile torque sensor 17 to be tested is fulfilled. After the operation of simulating real vibration and torque testing is completed, the index plate rotates and is switched to the next station.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A vibration testing mechanism for an automobile torque sensor comprises a vibration station support (1) and an up-down moving frame (2), wherein the up-down moving frame (2) is connected to the side part of the vibration station support (1) in a sliding mode along the vertical direction, a testing tool (3) installed on an indexing turntable can be transmitted to the position below the up-down moving frame (2), and the automobile torque sensor (17) to be tested is assembled on the testing tool (3); the method is characterized in that:
a first air cylinder (4) for driving the up-down moving frame (2) to vertically move is mounted on the vibration station support (1), a horizontal mounting plate (7) is fixedly mounted at the bottom of the up-down moving frame (2), lower support legs (12) are fixedly connected to four corners of the horizontal mounting plate (7) respectively, and the four lower support legs (12) can move downwards until being overhead to the four corners of the test tool (3);
the horizontal mounting plate (7) is rotatably provided with a horizontal vibration turntable (8) and a vertical hollow main shaft (9), a first stepping motor (10) for driving the hollow main shaft (9) to rotate is mounted on the up-down moving frame (2), a second stepping motor (11) for driving the vibration turntable (8) to rotate is mounted on the horizontal mounting plate (7), the lower end of the hollow main shaft (9) penetrates through a mounting hole (39) of the vibration turntable (8) and is connected with a tensioning shaft (18), and the tensioning shaft (18) moves downwards and can be in tight expansion fit with an assembling hole of an automobile torque sensor (17) to be measured;
the upper edge and the lower edge of the vibration turntable (8) are provided with four wedge blocks (32) and four trapezoidal grooves (33) at equal intervals, the wedge blocks (32) on the upper side and the lower side correspond to the trapezoidal grooves (33) in the vertical positions one by one, the bottom surfaces of the corresponding wedge blocks (32) are aligned with the bottom surfaces of the trapezoidal grooves (33), and the wedge blocks (32) and the trapezoidal grooves (33) on the same side are alternately arranged; the lower edge of the vibration turntable (8) is provided with a circular guide groove (34) which is concentric with the vibration turntable, and the inner side of the circular guide groove (34) is provided with five wedge-shaped grooves (35) at equal intervals;
horizontal rotating frames (19) are horizontally hinged to the four lower supporting legs (12), vertical idler wheels (21) and horizontal knocking heads (22) are respectively mounted at the top and the bottom of the other end of each horizontal rotating frame (19), the horizontal knocking heads (22) elastically abut against the side wall of the test tool (3), and the vertical idler wheels (21) roll along the inner side wall of the circular guide groove (34) and the inner side walls of the five wedge-shaped grooves (35); when the vertical rollers (21) on the four horizontal rotating frames (19) sequentially roll to the inner side walls of the five wedge-shaped grooves (35), the horizontal knocking heads (22) on the four horizontal rotating frames (19) sequentially knock the base plates (42) on the side walls of the test tool (3) once along the X positive direction, the X negative direction, the Y positive direction and the Y negative direction; cylinder two (13) are all installed to two relative sides of horizontal installation board (7), remove slider (25) through cylinder two (13) drive along the side horizontal slip of horizontal installation board (7), it has vertical removal frame (20) to follow vertical direction sliding connection on slider (25), the top of vertical removal frame (20), two horizontal gyro wheels (23) are installed respectively to the bottom, two vertical hits head (24), two horizontal gyro wheels (23) on vertical removal frame (20) are vertical arranging, and follow the top edge of vibration carousel (8) respectively, the top surface of wedge (32) on the lower limb, the bottom surface of trapezoidal recess (33) rolls, two vertical hits head (24) on vertical removal frame (20) are vertical arranging, and the elasticity roof pressure is on side ear (41) of test fixture (3) lateral wall, horizontal gyro wheel (23) on two vertical removal frames (20) roll away from the wedge (32) top surface of vibration carousel (8) edge in proper order, then vertical removal frame (20) on the positive direction (24) along the positive direction (Z) side ear (41) of test fixture (Z) Z in proper order, the side wall (41) of test fixture (3) is once knocked.
2. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: it installs cylinder three (6) to reciprocate frame (2) top, movable mounting has apical axis (40) in cavity main shaft (9), and the upper portion of apical axis (40) passes through shaft coupling (16) with the upper end of cavity main shaft (9) and is connected mutually in the transmission, but the piston rod downward movement of cylinder three (6) top in the upper end of apical axis (40), and the lower extreme of apical axis (40) is connected with round platform form slider, tight axle that rises (18) including with cavity main shaft (9) lower extreme fixed connection's fixed sleeve and a plurality of annular arrange in the latch segment of fixed sleeve lateral wall, the latch segment all along horizontal radial sliding connection in fixed sleeve's lateral wall, the inside portion of a plurality of latch segments all have with the periphery wall matched with inclined plane of round platform form slider, the outside portion an organic whole cover of a plurality of latch segments is equipped with the rubber circle.
3. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: the piston rod of the second cylinder (13) can drive the vertical moving frame (20) to horizontally move along the circle tangential direction of the vibrating turntable (8), namely two horizontal rollers (23) on the vertical moving frame (20) can be separated from or clamped at the edge of the vibrating turntable (8), and two vertical knocking heads (24) on the vertical moving frame (20) can be separated from or clamped at side lugs (41) on the testing tool (3).
4. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: install cable coupling head (26), cable coupling head two (27) on test fixture (3), the one end of cable coupling head (26) and the one end of cable coupling head two (27) pass through cable looks communication connection, and cable coupling head (26) slidable mounting is on test fixture (3), and the other end of cable coupling head (26) can slide to communication joint (29) of the car torque sensor (17) that awaits measuring until grafting communication mutually, and cable coupling head two (27) and test equipment looks communication connection.
5. The vibration testing mechanism for the torque sensor of the automobile according to claim 4, wherein: the testing device is characterized in that a cylinder four (30) and a cylinder five (31) are installed at the bottom of the vibration station support (1), a piston rod of the cylinder four (30) is connected with a testing connecting head (28) in communication connection with testing equipment, the piston rod of the cylinder four (30) can drive the testing connecting head (28) to be in plug-in communication with the other end of the cable connecting head two (27), a rocker (36) is horizontally hinged on a testing tool (3), one end of the rocker (36) is connected with the piston rod of the cylinder five (31), a strip-shaped groove (37) is formed in the other end of the rocker (36), a guide wheel (38) matched with the strip-shaped groove (37) is arranged on the cable connecting head one (26), and the piston rod of the cylinder five (31) drives the cable connecting head one (26) to be close to or far away from a communication joint (29) of the automobile torque sensor (17) to be tested.
6. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: the up-down moving frame (2) is slidably mounted on the side portion of the vibration station support (1) through a guide rail assembly, a piston rod of the cylinder I (4) is connected with the top of the up-down moving frame (2), and a cable crawler belt (5) is connected between the up-down moving frame (2) and the vibration station support (1).
7. The vibration testing mechanism for the torque sensor of the automobile according to claim 6, characterized in that: the hollow main shaft (9) is in transmission connection with the first stepping motor (10) through a synchronous pulley mechanism, and the vibration turntable (8) is in transmission connection with the second stepping motor (11) through the synchronous pulley mechanism.
8. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: the hollow spindle (9) is provided with a grating ruler (14), one side of the grating ruler (14) is provided with a reading head (15) and a grating sensor, and the grating sensor is used for detecting the rotation angle of the grating ruler (14).
9. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: the horizontal knocking head (22) is a bolt horizontally and movably mounted on the horizontal rotating frame (19), an adjusting nut is connected to the bolt in a threaded mode, a spring sleeved on the bolt is arranged between the adjusting nut and the horizontal rotating frame (19) in a cushioning mode, and the end portion of the bolt is in a spherical shape.
10. The vibration testing mechanism for the torque sensor of the automobile according to claim 1, characterized in that: two vertical knocking heads (24) on the vertical moving frame (20) are vertically and movably installed bolts, the two bolts are located on the same vertical line, a pressing plate is installed at the end part of each bolt, and a spring sleeved on the bolts is arranged between the pressing plate and the vertical moving frame (20) in a cushioning mode.
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| CN113607361B (en) * | 2021-06-22 | 2024-04-16 | 芜湖东光大华机械制造有限公司 | Combined flexible flywheel vibration resistance testing process |
| CN113790864A (en) * | 2021-09-18 | 2021-12-14 | 阳光学院 | Civil engineering structure shock resistance test device |
| CN115077625B (en) * | 2022-08-01 | 2023-11-03 | 江苏阳铭互联智能***有限公司 | Workpiece detection equipment |
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