CN115435991A - Main shaft rigidity measuring device - Google Patents
Main shaft rigidity measuring device Download PDFInfo
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- CN115435991A CN115435991A CN202211188273.4A CN202211188273A CN115435991A CN 115435991 A CN115435991 A CN 115435991A CN 202211188273 A CN202211188273 A CN 202211188273A CN 115435991 A CN115435991 A CN 115435991A
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- axial
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
- G01M5/0058—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems of elongated objects, e.g. pipes, masts, towers or railways
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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
- G01M13/00—Testing of machine parts
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a main shaft rigidity measuring device, which comprises a rack, a fixed seat and a rigidity detection module, wherein the fixed seat comprises a fixed plate, an upper fixed frame, a lower fixed frame, an upper connecting rod, a lower connecting rod, a locking part and a longitudinal driving mechanism; the rigidity detection module comprises a test bench and a rigidity detection mechanism, wherein the test bench comprises a test seat fixedly mounted on the rack and a limiting plate formed on the rear side of the test seat and arranged in the left-right direction along the length direction; the spindle rigidity measuring device can realize multi-angle static rigidity measurement of spindles with different specifications.
Description
Technical Field
The invention relates to the technical field of spindle rigidity measurement, in particular to a spindle rigidity measuring device.
Background
The rigidity of the spindle affects the precision of machining parts, so that in order to ensure the machining precision, the spindle meeting the rigidity requirement needs to be used.
When the static rigidity of the existing machine tool spindle is detected, the spindle axes cannot be accurately aligned when spindles of different specifications are measured, the universality is lacked, errors are easy to occur, and meanwhile, different fixing mechanisms are required to be replaced sometimes when the spindles of different sizes are detected, so that the accuracy and the practicability of the existing testing device are unsatisfactory.
Disclosure of Invention
The invention aims to overcome the defects and provides a main shaft rigidity measuring device which can realize multi-angle static rigidity measurement of main shafts with different specifications.
The invention provides a main shaft rigidity measuring device, comprising: a frame; a fixed seat; the rigidity detection module is characterized in that the fixing seat comprises a fixing plate, an upper fixing frame, a lower fixing frame, an upper connecting rod, a lower connecting rod, a locking part and a longitudinal driving mechanism, the lower fixing frame is fixed on the fixing plate and is arranged in an up-down symmetrical mode with the upper fixing frame, the upper end of the upper connecting rod is rotatably installed at the left end of the upper fixing frame, the lower connecting rod is arranged in an up-down symmetrical mode with the upper connecting rod, the upper end of the lower connecting rod is rotatably connected with the lower end of the upper connecting rod through a central rotating shaft, the lower end of the lower connecting rod is rotatably connected with the left end of the lower fixing frame, a limiting column is arranged on the front side of the central rotating shaft, the locking part is used for fixing the upper fixing frame on the lower fixing frame, a main shaft fixing space is formed between the upper fixing frame and the lower fixing frame, a base of the longitudinal driving mechanism is fixedly installed on the rack, and the output end of the longitudinal driving mechanism is fixedly connected with the fixing plate; the rigidity detection module includes testboard and rigidity detection mechanism, and the testboard includes the limiting plate that fixed mounting in the test seat in the frame and formation set up at the rear side of test seat and length direction along left right direction, when vertical actuating mechanism drive fixed plate rose, the upside of spacing post can rise to with the limiting plate butt, rigidity detection mechanism installs on the test seat.
Further, the rigidity detection mechanism comprises an axial rigidity detection mechanism, a base of the axial rigidity detection mechanism is fixed on the test seat, and when the upper side of the limiting column abuts against the limiting plate, a connecting line of a detection point of the axial rigidity detection mechanism and a central point of the spindle shaft core is parallel to the front-back direction.
Further, the axial rigidity detection mechanism comprises an axial force application driving part, an axial connecting shaft, an axial pressure sensor, an axial displacement sensor and an axial distance sensor, wherein a base of the axial force application driving mechanism is fixed on the test seat, an output end of the axial force application driving mechanism is fixedly connected with the connecting shaft, and the axial pressure sensor, the axial displacement sensor and the axial distance sensor are respectively fixed on the connecting shaft.
Further, rigidity detection mechanism still includes radial rigidity detection mechanism, and this radial detection mechanism includes axial straight line drive portion and radial rigidity detection portion, and axial straight line drive portion sets up on the test seat, and the base of radial rigidity detection portion and the output of axial straight line drive portion are direct or indirect fixed connection.
Further, radial detection mechanism still includes radial rotation drive portion, and radial rotation drive portion's base and axial straight line drive portion's output fixed connection, and when the upside of spacing post offseted with the limiting plate, radial rotation drive portion's rotation drive center and main shaft center coaxial line, radial rigidity detection portion's base and radial rotation drive portion's output fixed connection.
Further, radial rigidity detection portion includes radial application of force drive division, radial connecting axle, radial pressure sensor, radial displacement sensor and radial distance sensor, and radial application of force actuating mechanism's base is fixed on the test seat, output and connecting axle fixed connection, and radial pressure sensor, radial displacement sensor and radial distance sensor are fixed respectively on the connecting axle.
Further, the axial linear driving part comprises two axial sliding chutes, two axial sliding blocks, an axial lead screw and a first driving motor, the two axial sliding chutes are arranged in parallel along the left and right directions and are respectively formed at the left and right sides of the test seat, the two axial sliding blocks are respectively installed in the two axial sliding chutes in a sliding manner, the axial lead screw is rotatably installed in one of the axial sliding chutes and is in threaded connection with the corresponding axial sliding block, one end of the axial lead screw extends out of the side wall of the axial sliding chute, the motor seat of the first driving motor is fixedly installed on the test seat, and the output end of the first driving motor is coaxially and fixedly connected with one end of the axial lead screw.
Furthermore, the radial rotation driving part comprises an axial bearing, an external gear, a main gear and a second driving motor, wherein the outer ring of the axial bearing is fixed on the two axial sliding blocks, the external gear is coaxially and fixedly connected with the inner ring of the axial bearing, the main gear is meshed with the external gear, the second driving motor is coaxially and fixedly connected with the main gear, and the radial rigidity detecting part is arranged in the inner ring of the axial bearing.
Further, the longitudinal driving mechanism comprises a bottom plate, a first sliding groove, a first sliding block, a first connecting rod, a second sliding groove, a second sliding block, a second connecting rod, a longitudinal driving screw rod and a driving handle, wherein the bottom plate is fixed on the rack, the first sliding groove is formed in the bottom plate, the first sliding block is slidably mounted in the first sliding groove, one end of the first connecting rod is rotatably mounted on the first sliding block through a hinge, the other end of the first connecting rod is rotatably mounted on a fixing plate through a hinge, the second sliding groove is formed in the fixing plate, the second sliding block is slidably mounted on the second sliding groove, one end of the second connecting rod is rotatably mounted on the second sliding block through a hinge, the other end of the second connecting rod is rotatably mounted on the bottom plate through a hinge, the second connecting rod is rotatably connected with the first connecting rod through a shaft pin, the longitudinal driving screw rod is rotatably mounted in the first sliding groove and is in threaded connection with the first sliding block, and one end of the axial screw rod extends out of the side wall of the first sliding groove and is fixedly connected with the driving handle.
Further, the fixed locking part comprises two fixed locking units which are respectively arranged at the left side and the right side of the upper fixing frame. Each fixed locking unit comprises an upper fixing hole formed on one side corresponding to the upper fixing frame, a lower fixing hole formed on one side corresponding to the lower fixing frame, a fixed fastening bolt sequentially penetrating through the corresponding upper fixing hole and the corresponding lower fixing hole, and a fixed locking nut locked on the fixed locking bolt.
The invention has the beneficial effects that: according to the main shaft rigidity measuring device, the main shafts of different specifications can be fixed through the fixing seat, and further through the matching of the longitudinal driving mechanism, the limiting columns and the limiting plates, the central axes of the main shafts of different specifications can be always located on the same horizontal line, so that the accuracy of axial rigidity measurement is ensured, and the measurement of different positions of the shaft core in the circumferential direction can be further ensured during radial rigidity measurement.
Drawings
Fig. 1 is a right side schematic view of a spindle rigidity measuring apparatus according to an embodiment of the present invention;
fig. 2 is a schematic left side structural view of a spindle rigidity measuring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of the construction of the longitudinal drive mechanism in an embodiment of the invention;
fig. 4 is a partially enlarged view of a portion a in fig. 1.
In the figure, 1 is a fixing plate, 2 is an upper fixing frame, 3 is a lower fixing frame, 4 is an upper connecting rod, 5 is a lower connecting rod, 6 is a central rotating shaft, 7 is a limiting column, 8 is a fixing locking bolt, 9 is a fixing locking nut, 10 is a bottom plate, 11 is a first chute, 12 is a first slider, 13 is a first connecting rod, 14 is a second chute, 15 is a second slider, 16 is a second connecting rod, 17 is a longitudinal driving screw rod, 18 is a driving handle, 19 is a handle locking bolt, 20 is a radial force application driving part, 21 is a radial connecting shaft, 22 is a radial pressure sensor, 23 is a radial displacement sensor, 24 is a limiting plate, 25 is an axial chute, 26 is an axial slider, 27 is an axial screw rod, 28 is a first driving motor, 29 is an axial bearing, 30 is an external gear, 31 is a main gear, 32 is a second driving motor, 33 is an axial force application driving part, 34 is an axial pressure sensor, 35 is an axial displacement sensor, 36 is an axial distance sensor, 37 is a spindle core, and 38 is a rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Fig. 1 is a right side schematic view of a spindle rigidity measuring apparatus according to an embodiment of the present invention; fig. 2 is a left side schematic view of a spindle rigidity measuring apparatus according to an embodiment of the present invention. As shown in fig. 1 and 2, a main shaft rigidity measuring apparatus in the present embodiment includes a frame 38; a fixed seat; and a rigidity detection module.
The fixing seat comprises a fixing plate 1, an upper fixing frame 2, a lower fixing frame 3, an upper connecting rod 4, a lower connecting rod 5, a locking part and a longitudinal driving mechanism.
An upper V-shaped groove with an upward sharp opening is formed on the lower side of the upper fixing frame 2.
The lower fixing frame 3 is fixed on the fixing plate 1. The upper side of the upper fixing frame 2 is provided with a lower V-shaped groove which is vertically symmetrical with the upper V-shaped groove.
The upper end of the upper connecting rod 4 is rotatably mounted on the left end of the upper fixing frame 2.
The lower connecting rod 5 and the upper connecting rod 4 are arranged up and down symmetrically, the upper end of the lower connecting rod 5 is rotatably connected with the lower end of the upper connecting rod 4 through a central rotating shaft 6, and the lower end of the lower connecting rod 5 is rotatably connected with the left end of the lower fixing frame 3.
The front side of the central rotating shaft 6 is provided with a limiting post 7.
The fixing and locking part is used for fixing the upper fixing frame 2 on the lower fixing frame 3, so that a main shaft fixing space is formed between the upper fixing frame 2 and the lower fixing frame 3. The fixed locking part comprises two fixed locking units which are respectively arranged at the left side and the right side of the upper fixing frame 2. Each fixing and locking unit comprises an upper fixing hole formed on one side corresponding to the upper fixing frame 2, a lower fixing hole formed on one side corresponding to the lower fixing frame 3, a fixing and fastening bolt sequentially penetrating through the corresponding upper fixing hole and the corresponding lower fixing hole, and a fixing and locking nut 9 locked on the fixing and locking bolt 8.
Fig. 3 is a schematic structural view of a longitudinal driving mechanism in an embodiment of the present invention.
As shown in fig. 3, the base of the longitudinal driving mechanism is fixedly installed on the frame 38, and the output end of the longitudinal driving mechanism is fixedly connected with the fixing plate 1, and includes a bottom plate 10, a first sliding slot 11, a first slider 12, a first connecting rod 13, a second sliding slot 14, a second slider 15, a second connecting rod 16, a longitudinal driving screw 17, a driving handle 18, and a handle locking part.
The base plate 10 is fixed to the frame 38.
The first slide groove 11 is formed on the base plate 10.
The first slider 12 is slidably mounted in the first runner 11.
One end of the first link 13 is rotatably mounted on the first slider 12 through a hinge, and the other end is rotatably mounted on the fixed plate 1 through a hinge.
The second sliding groove 14 is formed on the fixing plate 1 and is disposed opposite to the first sliding groove 11.
The second slider 15 is slidably mounted on the second runner 14.
One end of the second link 16 is rotatably mounted on the second slider 15 through a hinge, the other end is rotatably mounted on the base plate 10 through a hinge, and the second link 16 and the first link 13 are rotatably connected through a shaft pin.
The longitudinal driving screw 17 is rotatably installed in the first sliding chute 11 and is in threaded connection with the first sliding block 12, and one end of the axial screw 27 extends out of the side wall of the first sliding chute 11 and is fixedly connected with the driving handle 18.
The handle locking portion includes an annular through hole formed on the actuating handle 18, a locking screw hole formed on a side wall of the first slide groove 11, and a handle locking bolt 19. One end of the handle locking bolt 19 passes through the annular through hole and then is in threaded connection with the handle locking bolt 19. When the height of the fixing plate 1 needs to be finely adjusted, the handle locking bolt 19 is loosened, the driving handle 18 is rotated, height adjustment is carried out, and after the upper side of the limiting column 7 is adjusted to abut against the limiting plate 24, the handle locking bolt 19 is screwed.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
As shown in fig. 1, 2 and 4, the rigidity detection module includes a test stand and a rigidity detection mechanism.
The test bench includes the limiting plate 24 that fixed mounting is on the test seat of frame 38 and formation set up at the rear side of test seat and length direction along left and right sides direction, when vertical actuating mechanism drive fixed plate 1 rose, the upside of spacing post 7 can rise to with limiting plate 24 butt.
The rigidity detection mechanism is arranged on the test seat and comprises an axial rigidity detection mechanism and a radial rigidity detection mechanism.
The axial rigidity detection mechanism includes an axial force application driving portion 33, an axial connection shaft, an axial pressure sensor 34, an axial displacement sensor 35, and an axial distance sensor 36. The axial force application driving mechanism is an electric push rod, a base of the axial force application driving mechanism is fixed on the test seat, and an output end of the axial force application driving mechanism is fixedly connected with the front side of the connecting shaft. The axial pressure sensor 34, the axial displacement sensor 35 and the axial distance sensor 36 are respectively fixed on the front end face of the connecting shaft, and the axial pressure sensor 34 protrudes backwards from the axial displacement sensor 35 and the axial distance sensor 36. When the upper side of the limiting column 7 abuts against the limiting plate 24, the connecting line of the detection point of the axial pressure sensor 34 and the central point of the spindle core 37 is parallel to the front-back direction, so that the force application position of the pressure sensor is close to the axis of the spindle core, and the measured axial rigidity is more accurate.
The radial detection mechanism includes an axial linear drive section, a radial rotational drive section, and a radial rigidity detection section.
The axial linear driving part is arranged on the test seat and comprises two axial sliding grooves 25, two axial sliding blocks 26, an axial lead screw 27 and a first driving motor 28.
The two axial sliding grooves 25 are arranged in parallel in the left-right direction and are formed on the left side and the right side of the test socket respectively.
Two axial sliding blocks 26 are slidably mounted in the two axial sliding grooves 25, respectively.
The axial screw 27 is rotatably mounted in one of the axial slide slots 25 and is in threaded connection with the corresponding axial slide block 26, and one end of the axial screw 27 extends out of the side wall of the axial slide slot 25.
The motor base of the first driving motor 28 is fixedly installed on the test base, and the output end of the first driving motor is coaxially and fixedly connected with one end of the axial lead screw 27.
The radial rotation driving part comprises an axial bearing 29 with an outer ring fixed on the two axial sliders 26, an external gear 30 coaxially and fixedly connected with the inner ring of the axial bearing 29, a main gear 31 meshed with the external gear 30, and a second driving motor 32 coaxially and fixedly connected with the main gear 31.
The radial rigidity detection unit includes a radial bias drive unit 20, a radial connection shaft 21, a radial pressure sensor 22, a radial displacement sensor 23, and a radial distance sensor. The radial force application driving mechanism is an electric push rod, a base of the radial force application driving mechanism is fixed on the test seat, and an output end of the radial force application driving mechanism is fixedly connected with the connecting shaft. The radial pressure sensor 22, the radial displacement sensor 23 and the radial distance sensor are respectively fixed on the connecting shaft, and the radial pressure sensor 22 protrudes backwards from the radial displacement sensor 23 and the radial distance sensor. For the main shafts with different diameters, the vertical distance between the pressure sensor and the main shaft can be changed during each measurement, and in order to adapt to the main shafts with different diameters, the vertical distance between the pressure sensor and the main shaft is measured through the distance sensor during measurement.
When the upper side of the limiting column 7 is abutted against the limiting plate 24, the axis of the axis bearing is coaxial with the center of the main shaft, the detection point of the radial pressure sensor 22 points to the axis of the shaft core 37 of the main shaft, and when rigidity measurement is required to be performed on different radial positions of the shaft core, the radial pressure sensor 22 can rotate around the axis of the shaft core, so that the radial static rigidity test on the main shaft in multiple directions is realized, and the applicability and the test precision of the device are more accurate. Meanwhile, the axial bearing 29 is driven by the axial linear driving part to move along the axial direction of the main shaft, so that the shaft core enters the inner ring of the bearing; further, by driving the axial bearing 29 to move along the axial direction of the main shaft, radial static stiffness tests can be performed on different axial positions of the shaft core.
The measurement flow of the spindle rigidity measuring device of the embodiment is as follows:
firstly, place the main shaft on the fixing base down, then screw lock nut to can realize the fixed to the main shaft of different diameters.
Then, the drive handle 18 is rotated to raise the fixing plate 1, and when the stopper post 7 abuts against the stopper plate 24, the rotation of the drive handle 18 is stopped, and the handle lock bolt 19 is tightened.
Then, the distance sensor is used for detecting the initial linear distance between the pressure connecting shaft and the main shaft to further obtain the initial vertical distance between the force application point of the pressure sensor and the main shaft, the pressure sensor is pressed on the main shaft core 37 and records the pressure, the displacement of the pressure sensor is detected through the displacement sensor, the deformation of the main shaft core 37 is obtained through calculation of the displacement and the initial vertical distance, the crystal rigidity is obtained through calculation of the pressure and the deformation, multiple groups of data can be measured, and the average value is taken as the final measured rigidity value.
In summary, the specific application examples of the present invention do not limit the scope of the present invention, and all technical solutions adopting equivalent substitution fall within the scope of the present invention.
Claims (10)
1. A spindle rigidity measuring apparatus, characterized by comprising: a frame; a fixed seat; the rigidity detection module is characterized in that the fixing seat comprises a fixing plate, an upper fixing frame, a lower fixing frame, an upper connecting rod, a lower connecting rod, a locking part and a longitudinal driving mechanism, the lower fixing frame is fixed on the fixing plate and is arranged in an up-down symmetrical mode with the upper fixing frame, the upper end of the upper connecting rod is rotatably installed at the left end of the upper fixing frame, the lower connecting rod is arranged in an up-down symmetrical mode with the upper connecting rod, the upper end of the lower connecting rod is rotatably connected with the lower end of the upper connecting rod through a central rotating shaft, the lower end of the lower connecting rod is rotatably connected with the left end of the lower fixing frame, a limiting column is arranged on the front side of the central rotating shaft, the locking part is used for fixing the upper fixing frame on the lower fixing frame, a main shaft fixing space is formed between the upper fixing frame and the lower fixing frame, and the base of the longitudinal driving mechanism is fixedly installed on the rack and the output end of the longitudinal driving mechanism is fixedly connected with the fixing plate; rigidity detection module includes testboard and rigidity detection mechanism, the testboard includes fixed mounting and is in test seat in the frame is in with the formation the limiting plate that the rear side and the length direction of test seat set up along left right direction vertical actuating mechanism drive when the fixed plate rises, the upside of spacing post can rise to with the limiting plate butt, rigidity detection mechanism installs on the test seat.
2. The spindle rigidity measuring device according to claim 1, wherein the rigidity detecting mechanism includes an axial rigidity detecting mechanism, a base of the axial rigidity detecting mechanism is fixed to the test base, and when an upper side of the limit column abuts against the limit plate, a line connecting a detection point of the axial rigidity detecting mechanism and a center point of the spindle core is parallel to a front-rear direction.
3. The spindle rigidity measuring device according to claim 2, wherein the axial rigidity detecting mechanism includes an axial force application driving portion, an axial connecting shaft, an axial pressure sensor, an axial displacement sensor, and an axial distance sensor, a base of the axial force application driving mechanism is fixed to the test seat, an output end of the axial force application driving mechanism is fixedly connected to the connecting shaft, and the axial pressure sensor, the axial displacement sensor, and the axial distance sensor are respectively fixed to the connecting shaft.
4. A spindle rigidity measuring apparatus according to claim 1, wherein the rigidity detecting mechanism further includes a radial rigidity detecting mechanism, the radial rigidity detecting mechanism includes an axial linear driving portion and a radial rigidity detecting portion, the axial linear driving portion is disposed on the test seat, and a base of the radial rigidity detecting portion is directly or indirectly fixedly connected to an output end of the axial linear driving portion.
5. The spindle rigidity measuring device according to claim 4, wherein the radial detection mechanism further comprises a radial rotation driving portion, a base of the radial rotation driving portion is fixedly connected with an output end of the axial linear driving portion, when the upper side of the limiting column abuts against the limiting plate, a rotation driving center of the radial rotation driving portion is coaxial with a center of the spindle, and the base of the radial rigidity detection portion is fixedly connected with the output end of the radial rotation driving portion.
6. The spindle rigidity measuring device according to claim 4, wherein the radial rigidity detecting portion includes a radial force application driving portion, a radial connecting shaft, a radial pressure sensor, a radial displacement sensor, and a radial distance sensor, a base of the radial force application driving mechanism is fixed to the test seat, an output end of the radial force application driving mechanism is fixedly connected to the connecting shaft, and the radial pressure sensor, the radial displacement sensor, and the radial distance sensor are respectively fixed to the connecting shaft.
7. The device for measuring the rigidity of the main shaft according to claim 5, wherein the axial linear driving portion comprises two axial sliding grooves, two axial sliding blocks, an axial lead screw and a first driving motor, the two axial sliding grooves are arranged in parallel in the left-right direction and are respectively formed in the left side and the right side of the test seat, the two axial sliding blocks are respectively installed in the two axial sliding grooves in a sliding manner, the axial lead screw is rotatably installed in one of the axial sliding grooves and is in threaded connection with the corresponding axial sliding block, one end of the axial lead screw extends out of the side wall of the axial sliding groove, and a motor seat of the first driving motor is fixedly installed on the test seat, and the output end of the motor seat is coaxially and fixedly connected with one end of the axial lead screw.
8. A spindle rigidity measuring device according to claim 7, wherein the radial rotation driving part comprises an axial bearing with an outer ring fixed on two axial sliding blocks, an external gear coaxially and fixedly connected with an inner ring of the axial bearing, a main gear meshed with the external gear, and a second driving motor coaxially and fixedly connected with the main gear, and the radial rigidity detecting part is installed in an inner ring of the axial bearing.
9. A spindle rigidity measuring device according to claim 1, wherein the longitudinal driving mechanism includes a bottom plate, a first sliding groove, a first slider, a first connecting rod, a second sliding groove, a second slider, a second connecting rod, a longitudinal driving screw rod and a driving handle, the bottom plate is fixed on the frame, the first sliding groove is formed on the bottom plate, the first slider is slidably mounted in the first sliding groove, one end of the first connecting rod is rotatably mounted on the first slider through a hinge, the other end of the first connecting rod is rotatably mounted on the fixing plate through a hinge, the second sliding groove is formed on the fixing plate, the second slider is slidably mounted on the second sliding groove, one end of the second connecting rod is rotatably mounted on the second slider through a hinge, the other end of the second connecting rod is rotatably mounted on the bottom plate through a hinge, the second connecting rod is rotatably connected with the first connecting rod through a shaft pin, the longitudinal driving screw rod is rotatably mounted in the first sliding groove and is in threaded connection with the first slider, and one end of the longitudinal driving screw rod extends out of a side wall of the first sliding groove and is fixedly connected with the driving handle.
10. The spindle rigidity measuring device according to claim 1, wherein the fixed locking portion includes two fixed locking units respectively disposed at left and right sides of the upper fixing frame, each of the fixed locking units includes an upper fixing hole formed at a corresponding side of the upper fixing frame, a lower fixing hole formed at a corresponding side of the lower fixing frame, a fixed fastening bolt sequentially passing through the corresponding upper fixing hole and the corresponding lower fixing hole, and a fixed locking nut locked to the fixed fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211188273.4A CN115435991A (en) | 2022-09-28 | 2022-09-28 | Main shaft rigidity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211188273.4A CN115435991A (en) | 2022-09-28 | 2022-09-28 | Main shaft rigidity measuring device |
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| Publication Number | Publication Date |
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| CN115435991A true CN115435991A (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211188273.4A Pending CN115435991A (en) | 2022-09-28 | 2022-09-28 | Main shaft rigidity measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118111705A (en) * | 2024-04-30 | 2024-05-31 | 淄博传强电机有限公司 | Rigidity detection device of speed reducer |
-
2022
- 2022-09-28 CN CN202211188273.4A patent/CN115435991A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118111705A (en) * | 2024-04-30 | 2024-05-31 | 淄博传强电机有限公司 | Rigidity detection device of speed reducer |
| CN118111705B (en) * | 2024-04-30 | 2024-07-12 | 淄博传强电机有限公司 | Rigidity detection device of speed reducer |
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