Inner star wheel measuring machine

Abstract

To provide an inner star wheel measuring machine.SOLUTION: The present invention discloses an inner star wheel measuring machine. An upper feeder is provided on the outer side, a standard assembly station is provided on the right side of the upper feeder, a phase fixing station is provided on the right side of the standard assembly station, an eccentricity measuring station is provided on the right side of the phase fixing station, an outer diameter and roller rail measuring station is provided on the right side of the eccentricity measuring station, a lower feeder is provided on the right side of the outer diameter and roller rail measuring station, the lower feeder is connected to an NG feeder, and the outer frame is further provided with a display and a control panel. By adopting the above technical solution, an inner star wheel measuring machine with improved efficiency and accurate inspection is produced. The outer dimension of the inner star wheel can be automatically measured with higher measurement accuracy and at a higher speed, and the collected data is automatically stored through a computer, thereby effectively reducing the workload of the operator.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of testing for inner star wheels, and in particular to a measuring machine for inner star wheels for rapid testing. [Background technology]

[0002] The inner star wheel is a key component of the ball-cage constant velocity universal joint. Its groove rail and other connecting parts work together to transmit power and torque to the transmission device, ensuring that the steering is flexible and free of hysteresis. Due to its high requirements for external shape and dimensional accuracy, and its complex shape, it is currently inspected manually using manual inspection tools.

[0003] Currently, the outer shape measurement of inner star wheels relies on manual inspection using manual inspection tools, which not only results in low measurement accuracy and efficiency, but also in uncontrollable manual errors. When the measurement results need to be analyzed, a huge data entry workload is required, resulting in high time costs.

[0004] Therefore, there is a need for an inner star wheel measuring machine with improved efficiency and accurate inspection. Summary of the Invention [Problem to be solved by the invention]

[0005] In order to solve the above problems, an object of the present invention is to provide a measuring machine for inner star wheels that can improve efficiency and perform accurate inspections. [Means for solving the problem]

[0006] The measuring machine for an inner star wheel in the present invention includes an outer frame, an upper feeder, a standard assembly station, a phase fixing station, an eccentricity measuring station, an outer diameter and roll rail measuring station, an NG feeder, a lower feeder, a display and a control panel, the upper feeder is installed outside the outer frame, the standard assembly station is installed to the right of the upper feeder, the phase fixing station is installed to the right of the standard assembly station, the eccentricity measuring station is installed to the right of the phase fixing station, the outer diameter and roll rail measuring station is installed to the right of the eccentricity measuring station, the lower feeder is installed to the right of the outer diameter and roll rail measuring station, and the lower feeder is connected to the NG feeder, and the outer frame is further equipped with a display and a control panel.

[0007] In the above solution, the eccentricity measuring station includes a first installation base, a first vertical pillar, a first protective cover, a first main base plate, a first reference assembly, a first measurement assembly, a ball rail measurement assembly, a first outer diameter measurement assembly, a first sensor support frame, a first optical fiber sensor, and a first pressing mechanism; the first vertical pillar and the first protective cover are installed on the first installation base, the first main base plate is installed on the first vertical pillar and the first protective cover, the first reference assembly is installed in the center on the first main base plate, and the first measuring assemblies are installed symmetrically on both sides of the first reference assembly; the ball rail measurement assembly and the first outer diameter measurement assembly are arranged radially with the first reference assembly as the origin; the first main base plate further has a first sensor support frame installed on the first sensor support frame, a first optical fiber sensor installed on the first main base plate; and the first pressing mechanism is further installed on the first main base plate, and the first pressing mechanism is connected to the first reference assembly.

[0008] In the above solution, the first measuring assembly includes a first manual sliding table, a first setting block, a cross roller sliding table, a block, a first setting strip, a first ball support seat, a first small ball, a first ball rail sensor support seat, a first sensor, a cylinder seat, a first cylinder, a throttle valve, a first spring, a first measuring rod, a contractible sensor, a first cushion block and a first cushion block seat; the first manual sliding table is provided with a first setting block, the cross roller sliding table is provided with a block, the cross roller sliding table is provided with a first setting strip on the block, and a first ball support seat is provided at each end of the first setting strip; a first small ball is installed on the first ball support seat; a first ball rail sensor support seat is further installed on the first installation strip; a first sensor is installed on the first ball rail sensor support seat; a cylinder seat is further installed on the first installation block; a first cylinder is installed on the cylinder seat; a throttle valve is installed on the first cylinder; the first cylinder is connected to a first spring; the first spring pushes the block forward; a first measuring rod is further installed on the first manual sliding table; the first measuring rod is connected to a retractable sensor; the first manual sliding table is connected to a first cushion block; and the first cushion block is connected to a first cushion block seat.

[0009] In the above solution, the ball rail measuring assembly and the first outer diameter measuring assembly are the same height outer diameter measuring unit, and the height outer diameter measuring unit includes an adjustment strip, a T-block combination, a spring support, a second spring, a second cylinder, a top block, a second ball rail support seat, a second sensor, a ball rail measuring rod, a measuring point, an inner diameter cushion block, a first adjusting screw seat and a first adjusting bolt, and the adjustment strip is provided with two sets of T-block combinations, which form a parallelogram, and the T-block combination includes a T-block, a spring plate, a gasket and a large gasket, and the two sets of T-block combinations A spring support is installed between the combinations, and a second spring is installed on the spring support. The two sets of T-block combinations are connected via a second cylinder and an upper top block. A second ball rail sensor support seat is installed on the upper T-block combination, and a second sensor is installed on the second ball rail sensor support seat. A ball rail measuring rod is also installed on the upper T-block combination, and a measuring point is installed on the ball rail measuring rod. The adjusting strip is further connected to an inner diameter cushion block, the inner diameter cushion block is connected to a first adjusting screw seat, and the first adjusting screw seat is connected to a first adjusting bolt.

[0010] In the above solution, the outer diameter and roll rail measuring station includes an installation bottom plate, a second vertical pillar, a second protective cover, a second large bottom plate, a second reference assembly, a second measurement assembly, a second outer diameter measuring assembly, a second sensor support frame, a second optical fiber sensor, and a second pressing mechanism, wherein the installation bottom plate is installed with the second vertical pillar and the second protective cover, the second large bottom plate is installed with the second vertical pillar and the second protective cover, the second reference assembly is installed at the center of the second large bottom plate, the second measurement assembly and the second outer diameter measuring assembly are arranged radially with the second reference assembly as the origin, a second sensor support frame is further installed on the second large bottom plate, a second optical fiber sensor is installed on the second sensor support frame, and a second pressing mechanism is further installed on the second large bottom plate, and the second pressing mechanism is connected to the second reference assembly.

[0011] In the above solution, the second outer diameter measurement assembly includes an adjusting block, a third sensor, an outer diameter measuring rod, a probe, an outer diameter cushion block, a second adjusting screw seat, and a second adjusting bolt, the third sensor is installed in the adjusting block, the outer diameter measuring rod is installed in the third sensor, and the probe is installed in the outer diameter measuring rod, the adjusting block is connected to the outer diameter cushion block, the outer diameter cushion block is connected to the second adjusting screw seat, and the second adjusting screw seat is connected to the second adjusting bolt.

[0012] In the above solution, the second measuring assembly includes a second manual sliding table, a second mounting block, a sensor assembly set, a second small ball, a swing sliding table, a second mounting strip, a second ball support seat, a measuring ball, a second cushion block and a second cushion block seat; a second mounting block is installed on the second manual sliding table, and two sensor assembly sets are installed on the second mounting block, and the sensor assembly set includes a sensor mounting seat, a fourth sensor, an extended measuring arm and a second measuring rod; the fourth sensor is installed on the sensor mounting seat, and the fourth sensor is connected to the extended measuring arm, the extended measuring arm is connected to the second measuring rod, and the second measuring rod is connected to the second small ball; a swing sliding table is further installed on the second mounting block, and the swing sliding table is connected to the second mounting strip; a second ball support seat is installed on the second mounting strip, and a measuring ball is installed on the second ball support seat; the two sensor assembly sets are installed on both sides of the second mounting strip; the second manual sliding table is connected to the second cushion block, and the second cushion block is connected to the second cushion block seat.

[0013] In the above solution, the swing slide table includes a swing slide table seat, a slider, a first guide rod, a ball slide sleeve, a guide sleeve, a second guide rod, a third spring, a needle-type cylinder, a top rod, and a plug, a slider is installed in the swing slide table seat, a first guide rod is installed in the swing slide table seat, a ball slide sleeve is installed outside the first guide rod, a guide sleeve is installed outside the ball slide sleeve, a second guide rod is also installed in the swing slide table seat, a third spring is installed on the second guide rod, the first guide rod and the second guide rod pass through the slider and the swing slide table seat and are fixed, a needle-type cylinder is installed in the swing slide table seat, the needle-type cylinder is connected to the top rod, a plug is installed between the first guide rod and the slider, and the plug is installed outside the first guide rod and is in close contact with the slider.

[0014] In the above solution, the phase-locking station includes a phase-locking station support seat, a lower base plate, a third vertical pillar, a third protective cover, a phase-locking station plate, a rotating part, a positioning assembly, a driving assembly, a timing belt, a third sensor support frame and a third optical fiber sensor, the phase-locking station support seat is installed with a lower base plate, a third vertical pillar and a third protective cover are installed with a phase-locking station plate on the third vertical pillar and the third protective cover, a rotating part is installed with a phase-locking station plate, positioning assemblies are installed on both sides of the rotating part, a driving assembly is further installed with a phase-locking station plate, and the driving assembly is connected to the rotating part via a timing belt, a third sensor support frame is further installed with a phase-locking station plate, and a third optical fiber sensor is installed with the third sensor support frame.

[0015] In the above solution, the phase locking station further includes a fourth protective cover, and the lower part of the rotating part and the drive assembly are installed in the fourth protective cover. [Effects of the Invention]

[0016] The advantages and beneficial effects of the present invention are that it provides an inner star wheel measuring machine for improving efficiency and accurately inspecting inner star wheels. The present invention primarily relies on a highly reliable, deflectable, and extendable measuring device to simultaneously measure the pitch circle diameter of a ball rail and the groove spacing between adjacent ball rails. The ingenious mechanical design automates the entire measurement process, ensuring high stability and reliability while simplifying the operator's workload. The measurement of the outer dimensions of the inner star wheel can be automated, with high measurement accuracy and speed, and the collected data can be automatically stored via a computer, effectively reducing the operator's workload. [Brief explanation of the drawings]

[0017] In order to more clearly describe the embodiments of the present invention or the technical solutions of the prior art, the drawings necessary for describing the embodiments or the prior art are briefly introduced below, which are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative efforts. [Figure 1] FIG. 1 is a first structural schematic diagram of the present invention. [Figure 2] FIG. 2 is a second structural schematic diagram of the present invention. [Figure 3] FIG. 1 is a first structural schematic diagram of an eccentricity measuring station. [Figure 4] FIG. 10 is a second structural schematic diagram of the eccentricity measuring station. [Figure 5] FIG. 2 is a first structural schematic diagram of a first measurement assembly. [Figure 6] FIG. 2 is a second structural schematic diagram of the first measurement assembly. [Figure 7] FIG. 10 is a third structural schematic diagram of the first measurement assembly. [Figure 8] FIG. 1 is a first structural schematic diagram of a ball rail measurement assembly. [Figure 9] FIG. 10 is a second structural schematic diagram of the ball rail measurement assembly. [Figure 10] FIG. 1 is a first structural schematic diagram of an outer diameter and roll rail measuring station. [Figure 11] FIG. 10 is a second structural schematic diagram of the outer diameter and roll rail measuring station. [Figure 12] FIG. 2 is a structural schematic diagram of a second outer diameter measurement assembly. [Figure 13] FIG. 2 is a first structural schematic diagram of a second measurement assembly. [Figure 14] FIG. 10 is a second structural schematic diagram of the second measurement assembly. [Figure 15] 1 is a schematic diagram of the structure of a swing-slide table. [Figure 16] FIG. 1 is a first structural schematic diagram of a phase locking station. [Figure 17] FIG. 10 is a second structural schematic diagram of the phase locking station. DETAILED DESCRIPTION OF THE INVENTION

[0018] Specific embodiments of the present invention are further described below with reference to figures and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are not used to limit the scope of the present invention.

[0019] As shown in FIGS. 1 and 2 , the present invention is an inner star wheel measuring machine, which includes an outer frame 1, an upper feeder 2, a standard assembly station 3, a phase fixing station 4, an eccentricity measuring station 5, an outer diameter and roll rail measuring station 6, a NG feeder 7, a lower feeder 8, and a display and control panel 9. The upper feeder 2 is installed outside the outer frame 1, the standard assembly station 3 is installed to the right of the upper feeder 2, the phase fixing station 4 is installed to the right of the standard assembly station 3, the eccentricity measuring station 5 is installed to the right of the phase fixing station 4, the outer diameter and roll rail measuring station 6 is installed to the right of the eccentricity measuring station 5, and the lower feeder 8 is installed to the right of the outer diameter and roll rail measuring station 6, and the lower feeder 8 is connected to the NG feeder 7. The outer frame 1 is also equipped with a display and control panel 9.

[0020] As shown in Figures 3 and 4, the eccentricity measuring station 5 includes a first installation base 5-1, a first vertical column 5-2, a first protective cover 5-3, a first large base plate 5-4, a first reference assembly 5-5, a first measurement assembly 5-6, a ball rail measurement assembly 5-7, a first outer diameter measurement assembly 5-8, a first sensor support frame 5-9, a first optical fiber sensor 5-10, and a first pressing mechanism 5-11. The first installation base 5-1 is provided with the first vertical column 5-2 and the first protective cover 5-3, and the first large base plate 5-4 is provided on the first vertical column 5-2 and the first protective cover 5-3. A first reference assembly 5-5 is installed on the first base plate 5-4, and a first measurement assembly 5-6 is installed symmetrically on both sides of the first reference assembly 5-5.The ball rail measurement assembly 5-7 and the first outer diameter measurement assembly 5-8 are arranged radially with the first reference assembly 5-5 as the origin.A first sensor support frame 5-9 is also installed on the first base plate 5-4, and a first optical fiber sensor 5-10 is installed on the first sensor support frame 5-9.A first pressing mechanism 5-11 is also installed on the first base plate 5-4, and the first pressing mechanism 5-11 is connected to the first reference assembly 5-5.

[0021] The eccentricity measuring station 5 measures the height difference between the center of the pitch circle and the center of the outer circumference of a ball rail. This station features a double buffer structure to effectively prevent vibrations from affecting the measurement. The robot arm places the inner star wheel on the station's first reference assembly 5-5. The first optical fiber sensor 5-10 detects the inner star wheel and sends an activation signal. This causes the two first measuring assemblies 5-6, which have circumferential positioning functions, to extend, and the first press mechanism 5-11 presses to ensure that the inner star wheel is in firm contact with the reference. The remaining six ball rail measuring assemblies 5-7 and eight first outer diameter measuring assemblies 5-8 extend, and their sensors perform measurements. After the measurement is complete, all measuring assemblies and press mechanisms return to their standby state, release the inner star wheel, and wait for the robot arm to grasp it.

[0022] As shown in Figures 5, 6 and 7, the first measuring assembly 5-6 includes a first manual slide table 5-61, a first installation block 5-62, a cross roller slide table 5-63, a block 5-64, a first installation strip 5-65, a first ball support seat 5-66, a first small ball 5-67, a first ball rail sensor support seat 5-68, a first sensor 5-69, a cylinder seat 5-610, a first cylinder 5-611, a throttle valve 5-612, a first spring 5-613, and a first measuring rod 5-614. , a contraction type sensor 5-615, a first cushion block 5-616 and a first cushion block seat 5-617, a first installation block 5-62 is installed on the first manual slide table 5-61, a cross roller slide table 5-63 is installed on the first installation block 5-62, a block 5-64 is installed on the cross roller slide table 5-63, a first installation strip 5-65 is installed on the block 5-64, and one second installation strip 5-65 is installed on each end of the first installation strip 5-65. A first ball support seat 5-66 is installed, a first small ball 5-67 is installed in the first ball support seat 5-66, a first ball rail sensor support seat 5-68 is further installed in the first installation strip 5-65, a first sensor 5-69 is installed in the first ball rail sensor support seat 5-68, a cylinder seat 5-610 is further installed in the first installation block 5-62, a first cylinder 5-611 is installed in the cylinder seat 5-610, and a throttle valve 5-612 is installed in the first cylinder 5-611. The first manual slide table 5-61 is further provided with a first measuring rod 5-614, which is connected to a contraction type sensor 5-615. The first manual slide table 5-61 is connected to a first cushion block 5-616, which is connected to a first cushion block seat 5-617.

[0023] The first mounting strip 5-65 is fitted with a first small ball 5-67 at each end via a first ball support seat 5-66. The first mounting strip 5-65 is attached to the cross-roller slide table 5-63 via a block 5-64. The cylinder seat 5-610 is fitted with a first spring 5-613, which pushes the block 5-64 forward, driving the first small ball 5-67 and the first sensor 5-69 into firm contact with the inner star wheel. The first measuring rod 5-614 then makes firm contact with the first small ball 5-67 at the rear end, allowing the retractable sensor 5-615 and the first sensor 5-69 to perform the measurement. When the measurement is complete, the cylinder retracts, pushing the block 5-64, disengaging the first small ball 5-67 from the inner star wheel and the first small ball 5-67 from the first measuring rod 5-614. The entire mechanism is installed on the first manual slide table 5-61, and the first cushion block 5-616 is spaced apart from the fixed first cushion block seat 5-617, allowing for quick replacement by simply replacing the first cushion block 5-616.

[0024] As shown in Figures 8 and 9, the ball rail measuring assembly 5-7 and the first outer diameter measuring assembly 5-8 are the same height outer diameter measuring unit. The height outer diameter measuring unit includes an adjusting strip 5-71, a T-block combination, a spring support 5-72, a second spring 5-73, a second cylinder 5-74, a top block 5-75, a second ball rail support seat 5-76, a second sensor 5-77, a ball rail measuring rod 5-78, a measuring point 5-79, an inner diameter cushion block 5-710, a first adjusting screw seat 5-711, and a first adjusting bolt 5-712. Two sets of T-block combinations are installed on the adjusting strip 5-71. The two sets of T-block combinations form a parallelogram. The T-block combination includes a T-block 5-713, a spring plate 5-714, a gasket 5-715, and a large gasket 5-716. A spring support 5-72 is installed between the two sets of T-block combinations, and a second spring 5-73 is installed on the spring support 5-72. The two sets of T-block combinations are connected via a second cylinder 5-74 and an upper top block 5-75. A second ball rail sensor support seat 5-76 is installed on the upper T-block combination, and a second sensor 5-77 is installed on the second ball rail sensor support seat 5-76. A ball rail measuring rod 5-78 is also installed on the upper T-block combination, and a measuring point 5-79 is installed on the ball rail measuring rod 5-78. The adjusting strip 5-71 is further connected to an inner diameter cushion block 5-710, which is connected to a first adjusting screw seat 5-711, and the first adjusting screw seat 5-711 is connected to a first adjusting bolt 5-712.

[0025] The ball rail measurement assembly 5-7 is a parallelogram assembly consisting of two sets of spring plates 5-714, gaskets 5-715, and large gaskets 5-716 attached to both sides of a T-block 5-713. The lower T-block 5-713 is fixed to the adjustment strip 5-71. In its free state, the second spring 5-73 pulls the spring support 5-72 attached to the upper T-block 5-713 forward, ensuring that the measurement point 5-79 attached to the ball rail measurement rod 5-78 and the second sensor 5-77 attached to the second ball rail support seat 5-76 are in contact with the ball rail of the inner star wheel. After the measurement is complete, the second cylinder 5-74, attached to the top block 5-75 at the end of the rod, extends, pushing the upper T-block 5-713 back, releasing the measurement point 5-79 and the second sensor 5-77 from the inner star wheel. The inner diameter cushion block 5-710 is spaced between the adjustment strip 5-71 and the first adjustment screw seat 5-711, allowing for quick replacement by simply replacing the inner diameter cushion block 5-710 and adjusting the first adjustment bolt 5-712. This measurement assembly measures the height of the ball rail's pitch circle center. The measurement principle is as follows: a fixed measurement point 5-79 and a second sensor 5-77 are symmetrically positioned above and below the plane of the theoretical center of the pitch circle. The displacement of the sensor contacts is converted into a change in the height of the pitch circle center by an algorithm. The clever parallelogram structure of the spring plate allows for horizontal movement of the measurement point and sensor.

[0026] The first outer diameter measurement assembly 5-8 measures the height of the center of the outer circle of the inner star wheel. The measurement principle is that a fixed measurement point 5-79 and a second sensor 5-77 are symmetrically positioned above and below the plane where the theoretical center of the outer circle is located. The displacement of the sensor contacts is converted into a change in the height of the center of the outer circle by an algorithm. The clever parallelogram structure of the spring plate allows for horizontal movement of the measurement point and sensor.

[0027] As shown in Figures 10 and 11, the outer diameter and roll rail measuring station 6 includes an installation bottom plate 6-1, a second vertical column 6-2, a second protective cover 6-3, a second large bottom plate 6-4, a second reference assembly 6-5, a second measurement assembly 6-6, a second outer diameter measuring assembly 6-7, a second sensor support frame 6-8, a second optical fiber sensor 6-9, and a second pressing mechanism 6-10. The installation bottom plate 6-1 is provided with the second vertical column 6-2 and the second protective cover 6-3, and the second large bottom plate 6-4 is provided with the second vertical column 6-2 and the second protective cover 6-3. A second reference assembly 6-5 is installed in the center of the second large bottom plate 6-4, and a second measurement assembly 6-6 and a second outer diameter measurement assembly 6-7 are arranged radially from the second reference assembly 6-5 as the origin. A second sensor support frame 6-8 is also installed on the second large bottom plate 6-4, and a second optical fiber sensor 6-9 is installed on the second sensor support frame 6-8. A second press mechanism 6-10 is also installed on the second large bottom plate 6-4, and the second press mechanism 6-10 is connected to the second reference assembly 6-5.

[0028] This station is used to measure the outer diameter and ball rail pitch diameter and the distance between adjacent ball rails. It features a double buffer structure. Specifically, all measuring mechanisms are mounted on the second large base plate 6-4, which is attached to the mounting base plate 6-1 via the second vertical column 6-2, effectively preventing vibrations from affecting the measurement. The robot arm places the inner star wheel on the station's second reference assembly 6-5. The second optical fiber sensor 6-9 detects the inner star wheel and sends an activation signal. The second press mechanism 6-10 presses to ensure the inner star wheel is in contact with the reference. The remaining eight sets of second measuring assemblies 6-6 and eight sets of second outer diameter measuring assemblies 6-7 are extended, and their sensors perform measurements. After the measurement is complete, all measuring assemblies and press mechanisms return to their standby state, release the inner star wheel, and wait for the robot arm to grasp it.

[0029] As shown in FIG. 12, the second outer diameter measurement assembly 6-7 includes an adjustment block 6-71, a third sensor 6-72, an outer diameter measurement rod 6-73, a probe 6-74, an outer diameter cushion block 6-75, a second adjustment screw seat 6-76, and a second adjustment bolt 6-77. The third sensor 6-72 is installed in the adjustment block 6-71, the outer diameter measurement rod 6-73 is installed in the third sensor 6-72, and the probe 6-74 is installed in the outer diameter measurement rod 6-73. The adjustment block 6-71 is connected to the outer diameter cushion block 6-75, the outer diameter cushion block 6-75 is connected to the second adjustment screw seat 6-76, and the second adjustment screw seat 6-76 is connected to the second adjustment bolt 6-77.

[0030] The second outer diameter measuring assembly 6-7 and the third sensor 6-72 are elastic structures with their own cylinders. They are mounted on the adjustment block 6-71, and the probe 6-74 is connected to the third sensor 6-72 via the outer diameter measuring rod 6-73. A cushion block 6-75 is spaced between the adjustment block 6-71 and the fixed second adjusting screw seat 6-76, allowing for quick replacement by simply rotating the cushion block 6-75 and adjusting the second adjusting bolt 6-77. During operation, the probe 6-74 makes sure contact with the inner star wheel to achieve measurement. After the measurement is completed, the third sensor 6-72 drives the probe 6-74 to retract, avoiding collisions.

[0031] As shown in Figures 13 and 14, the second measuring assembly 6-6 includes a second manual sliding table 6-61, a second mounting block 6-62, a sensor assembly set, a second small ball 6-64, a swing sliding table 6-65, a second mounting strip 6-66, a second ball support seat 6-67, a measuring ball 6-68, a second cushion block 6-69 and a second cushion block seat 6-610. The second manual sliding table 6-61 is equipped with a second mounting block 6-62, and two sensor assembly sets are installed on the second mounting block 6-62. The sensor assembly set includes a sensor mounting seat 6-631, a fourth sensor 6-632, an extension measuring arm 6-633 and a second measuring rod 6-634. The fourth sensor 6-632 is installed on the sensor mounting seat 6-631. The fourth sensor 6-632 is connected to the extended measuring arm 6-633, the extended measuring arm 6-633 is connected to the second measuring rod 6-634, the second measuring rod 6-634 is connected to the second small ball 6-64, a swing slide table 6-65 is further installed on the second mounting block 6-62, the swing slide table 6-65 is connected to the second mounting strip 6-66, a second ball support seat 6-67 is installed on the second mounting strip 6-66, a measuring ball 6-68 is installed on the second ball support seat 6-67, two sensor assembly sets are installed on both sides of the second mounting strip 6-66, the second manual slide table 6-61 is connected to the second cushion block 6-69, and the second cushion block 6-69 is connected to the second cushion block seat 6-610.

[0032] The measuring ball 6-68 and the second small ball 6-64 have the same diameter and are both attached to the second mounting strip 6-66 via the second ball support seat 6-67. They are driven forward and backward by the swing-slide table 6-65. During measurement, the internal spring of the swing-slide table 6-65 pushes the slider 6-652 forward, driving the measuring ball 6-68 into firm contact with the workpiece. The second small ball 6-64 pushes the second measuring rod 6-634 to generate a displacement. The fourth sensor 6-632 connected to the second measuring rod 6-634 generates a signal to achieve measurement. When measurement is complete, the cylinder extends and pushes the top rod 6-659 fixed to the swing-slide table 6-65, disengaging the measuring ball 6-68 from the inner star wheel and the second measuring rod 6-634 from the second small ball 6-64. The entire mechanism is mounted on a second manual slide table 6-61, with the second cushion block 6-69 spaced apart from the fixed second cushion block seat 6-610, allowing for quick replacement by replacing the second cushion block 6-69.

[0033] As shown in FIG. 15, the swing slide table 6-65 includes a swing slide table seat 6-651, a slider 6-652, a first guide rod 6-653, a ball slide sleeve 6-654, a guide sleeve 6-655, a second guide rod 6-656, a third spring 6-657, a needle-type cylinder 6-658, a top rod 6-659, and a plug 6-6510. The slider 6-652 is installed in the swing slide table seat 6-651, the first guide rod 6-653 is installed in the swing slide table seat 6-651, the ball slide sleeve 6-654 is installed outside the first guide rod 6-653, and the guide sleeve 6-655 is installed outside the ball slide sleeve 6-654. 655 is installed, and a second guide rod 6-656 is also installed on the swing slide table seat 6-651, and a third spring 6-657 is installed on the second guide rod 6-656, and the first guide rod 6-653 and the second guide rod 6-656 pass through the slider 6-652 and the swing slide table seat 6-651 and are fixed, a needle-type cylinder 6-658 is installed on the swing slide table seat 6-651, and the needle-type cylinder 6-658 is connected to the top rod 6-659, and a plug 6-6510 is installed between the first guide rod 6-653 and the slider 6-652, and the plug 6-6510 is installed on the outside of the first guide rod 6-653 and is in close contact with the slider 6-652.

[0034] This mechanism is a swing-slide table. A guide sleeve 6-655 is fitted to the slider 6-652, and a ball slide sleeve 6-654 is fitted to the first guide rod 6-653 on the swing-slide table seat 6-651, allowing the slider 6-652 to perform combined linear and rotational motion. A second guide rod 6-656 passes through the slider 6-652 and is fixed to the swing-slide table seat 6-651, limiting the circumferential position of the slider 6-652. A needle-type cylinder 6-658 is installed on the swing-slide table seat 6-651. When extended, it pushes the top rod 6-659 to push the slider 6-652. When the cylinder retracts, a third spring 6-657 between the swing-slide table seat 6-651 and the slider 6-652 provides a restoring force to push the slider 6-652.

[0035] As shown in Figures 16 and 17, the phase-locking station 4 includes a phase-locking station support seat 4-1, a lower base plate 4-2, a third vertical column 4-3, a third protective cover 4-4, a phase-locking station plate 4-5, a rotating part 4-6, a positioning assembly 4-7, a driving assembly 4-8, a timing belt 4-9, a third sensor support frame 4-10, and a third optical fiber sensor 4-11. The phase-locking station support seat 4-1 is provided with a lower base plate 4-2, and the third vertical column 4-3 and the third protective cover 4-4 are provided with a lower base plate 4-2. A phase-locked station plate 4-5 is installed on the 4, a rotating part 4-6 is installed on the phase-locked station plate 4-5, positioning assemblies 4-7 are installed on both sides of the rotating part 4-6, a drive assembly 4-8 is further installed on the phase-locked station plate 4-5, and the drive assembly 4-8 is connected to the rotating part 4-6 via a timing belt 4-9, a third sensor support frame 4-10 is further installed on the phase-locked station plate 4-5, and a third optical fiber sensor 4-11 is installed on the third sensor support frame 4-10.

[0036] The phase locking station 4 further includes a fourth protective cover, and the lower part of the rotating part 4-6 and the drive assembly 4-8 are installed within the fourth protective cover 4-12.

[0037] This station is a phase-locked station. After the third optical fiber sensor 4-11 detects the inner star wheel, the driving assembly 4-8 drives the rotating part 4-6 via the timing belt 4-9 to rotate, and the inner star wheel rotates in register under the action of frictional force. At this time, the positioning assembly 4-7 extends, and the small balls in the assembly fit into the ball rails of the inner star wheel, completing the circumferential positioning of the inner star wheel.

[0038] After placing the inner star wheel on the upper feeder and pressing the start button, the belt conveyor transports the star wheel to its waiting position on the upper feeder. Truss robot arm A then holds the inner star wheel in the phase-locking station, which is equipped with a pair of telescopic devices to position the inner star wheel circumferentially. Once positioning is complete, truss robot arm B then holds the inner star wheel in the eccentricity measurement station, which is equipped with eight sets of telescopic measuring devices to measure the difference between the center height of the inner star wheel's ball rail and the center height of its outer circle and record the results. After the eccentricity measurement station is complete, truss robot arm C then holds the inner star wheel in the outer diameter and ball rail measurement station, which is equipped with eight sets of outer diameter measuring devices and eight sets of ball rail measuring devices to measure the outer diameter, ball rail pitch circle diameter, groove spacing, etc. of the inner star wheel and record the results. After the measurement of the outer diameter and ball rail measuring stations is completed, the truss robot arm D grasps the inner star wheel at the waiting position of the lower feeder, and depending on the pass / fail of the measurement result, it is discharged to the lower feeder or NG feeder respectively. All measurement results are displayed on the screen. A standard assembly is placed in the standard assembly station, and before the official measurement, the robot arm first grasps the standard assembly and goes through the process once, performing zero calibration of the sensor at each station.

[0039] The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. [Explanation of symbols]

[0040] 1 Outer frame 2 Upper feeder 3 Standard Assembly Stations 4 Phase Fixed Station 5 Eccentricity measuring station 5-1 1st installation base 5-2 First vertical pillar 5-3 First protective cover 5-4 1st large bottom plate 5-5 First Reference Assembly 5-6 First measurement assembly 5-7 Ball Rail Measurement Assembly 5-8 First outer diameter measuring assembly 5-9 First sensor support frame 5-10 First optical fiber sensor 5-11 First press mechanism 5-61 First manual slide table 5-62 First Installation Block 5-63 Cross Roller Slide Table 5-64 blocks 5-65 First installation strip 5-66 First ball support seat 5-67 First small ball 5-68 First ball rail sensor support seat 5-69 First Sensor 5-610 Cylinder seat 5-611 No. 1 cylinder 5-612 throttle valve 5-613 First Spring 5-614 First measuring rod 5-615 Contraction Sensor 5-616 First cushion block 5-617 First cushion block seat 5-71 Adjustment strip and T-block combination 5-72 Spring support 5-73 Second Spring 5-74 No. 2 cylinder 5-75 Top Block 5-76 Second ball rail support seat 5-77 Second Sensor 5-78 Ball Rail Measuring Rod 5-79 Measurement points 5-710 Inner diameter cushion block 5-711 First adjusting screw seat 5-712 First adjustment bolt 5-713 T-block 5-714 Spring Plate 5-715 Gasket 5-716 Large Gasket 6 Roll Rail Measuring Station 6-1 Installation bottom plate 6-2 Second vertical pillar 6-3 Second protective cover 6-4 2nd large bottom plate 6-5 Second Reference Assembly 6-6 Second measurement assembly 6-7 Second outer diameter measuring assembly 6-8 Second sensor support frame 6-9 Second optical fiber sensor 6-10 Second press mechanism 6-71 Adjustment Block 6-72 Third Sensor 6-73 Outer diameter measuring rod 6-74 Probe 6-75 Outer diameter cushion block 6-76 Second adjusting screw seat 6-77 Second adjustment bolt 6-61 Second manual slide table 6-62 Second installation block 6-64 Second small ball 6-65 Swing Slide Table 6-66 Second installation strip 6-67 Second ball support seat 6-68 Measuring Ball 6-69 Second cushion block 6-610 Second cushion block seat 6-631 Sensor installation seat 6-632 4th Sensor 6-633 Extension Measuring Arm 6-634 Second Measuring Rod 6-651 Swing Slide Table Seat 6-652 slider 6-653 First guide rod 6-654 Ball Slide Sleeve 6-655 Guide sleeve 6-656 Second guide rod 6-657 3rd Spring 6-658 Needle-type cylinder 6-659 Top Rod 6-6510 Plug 4-1 Phase fixed station support seat 4-2 Lower bottom plate 4-3 Third vertical pillar 4-4 Third protective cover 4-5 Phase-locked station plate 4-6 Rotating parts 4-7 Positioning assembly 4-8 Drive Assembly 4-9 Timing belt 4-10 Third sensor support frame 4-11 Third optical fiber sensor 4-12 Fourth protective cover 7 NG Feeder 8 Bottom Feeder 9 Display and Control Panel

Claims

1. The system includes a frame, an upper feeder, a standard assembly station, a phase fixing station, an eccentricity measuring station, an outer diameter and ball rail measuring station, an NG feeder, a lower feeder, a display and a control panel, the upper feeder is installed outside the frame, the standard assembly station is installed to the right of the upper feeder, the phase fixing station is installed to the right of the standard assembly station, the eccentricity measuring station is installed to the right of the phase fixing station, the outer diameter and ball rail measuring station is installed to the right of the eccentricity measuring station, the lower feeder is installed to the right of the outer diameter and ball rail measuring station, and the lower feeder is connected to the NG feeder, and the display and the control panel are further installed on the frame, When the inner star wheel to be measured is placed on the upper feeder and a start button is pressed, the belt conveyor transports the inner star wheel to a standby position on the upper feeder, and the first truss robot arm holds the inner star wheel in the phase fixing station, and a pair of extension devices are disposed in the phase fixing station to perform circumferential positioning of the inner star wheel; When the circumferential positioning is completed, the second truss robot arm holds the inner star wheel in the eccentricity measuring station, and the eccentricity measuring station is provided with an extendable measuring device that measures the difference between the center height of the ball rail of the inner star wheel and the center height of the outer circle and records the result; When the measurement at the eccentricity measuring station is completed, the third truss robot arm holds the inner star wheel in the outer diameter and ball rail measuring station, and the outer diameter and ball rail measuring station is provided with an outer diameter measuring device that measures the outer diameter of the inner star wheel and records the results, and a ball rail measuring device that measures the pitch circle diameter and groove spacing of the ball rail and records the results, When the measurements at the outer diameter and ball rail measuring stations are completed, the fourth truss robot arm holds the inner star wheel at a standby position on the lower feeder, and discharges it to the lower feeder or the NG feeder depending on whether the measurement results are pass or fail, and all measurement results are displayed on the display.

2. the eccentricity measuring station includes a first installation base, a first vertical column, a first cover, a first large base plate, a first reference assembly, a first measurement assembly, a ball rail measurement assembly, a first outer diameter measurement assembly, a first sensor support frame, a first optical fiber sensor, and a first pressing mechanism; the first vertical column and the first cover are installed on the first installation base, the first large base plate is installed on the first vertical column and the first cover, the first reference assembly is installed at the center on the first large base plate, the first measurement assemblies are installed symmetrically on both sides of the first reference assembly, the ball rail measurement assembly and the first outer diameter measurement assembly are arranged radially with the first reference assembly as the origin, the first sensor support frame is further installed on the first large base plate, the first optical fiber sensor is installed on the first sensor support frame, the first pressing mechanism is further installed on the first large base plate, and the first pressing mechanism is connected to the first reference assembly; 2. The inner star wheel measuring device according to claim 1, wherein the first optical fiber sensor is arranged to transmit an activation signal when it senses the inner star wheel.

3. The first measuring assembly includes a first manual sliding table, a first mounting block, a cross roller sliding table, a block, a first mounting strip, a first ball support seat, a first small ball, a first ball rail sensor support seat, a first sensor, a cylinder seat, a first cylinder, a throttle valve, a first spring, a first measuring rod, a contractible sensor, a first cushion block and a first cushion block seat; the first manual slide table is provided with the first setting block, the cross roller slide table is provided with the first setting block, the block is provided with the first setting strip, the first ball support seat is provided at each end of the first setting strip, the first small ball is provided on the first ball support seat, the first setting strip is further provided with the first ball rail sensor support seat, the first sensor is provided on the first ball rail sensor support seat, the first setting block is further provided with the cylinder seat, the first cylinder is provided with the first cylinder, the throttle valve is provided on the first cylinder, the first cylinder is connected with the first spring, the first spring pushes the block forward, the first manual slide table is further provided with the first measuring rod, the first measuring rod is connected with the contractible sensor, the first manual slide table is connected with the first cushion block, and the first cushion block is connected with the first cushion block seat, 3. The inner star wheel measuring machine according to claim 2, wherein the first small balls are attached to both ends of the first installation strip via the first ball support seats, the first installation strip is attached to the cross roller slide table via the block, and the block is pushed forward to drive the first small ball and the first sensor at the front end into contact with the inner star wheel, the first measuring rod contacts the first small ball at the rear end, and the contractible sensor and the first sensor are arranged to measure the displacement of the sensor contacts.

4. the ball rail measuring assembly and the first outer diameter measuring assembly are the same height outer diameter measuring unit, The height outer diameter measuring unit includes an adjusting strip, a T-block combination, a spring support, a second spring, a second cylinder, a top block, a second ball rail sensor support seat, a second sensor, a ball rail measuring rod, an inner diameter cushion block, a first adjusting screw seat and a first adjusting bolt; two sets of T-block combinations are installed on the adjusting strip, the two sets of T-block combinations form a parallelogram, the T-block combination includes a T-block, a spring plate, a gasket and a large gasket, the spring support is installed between the two sets of T-block combinations, the second spring is installed on the spring support, the two sets of T-block combinations are connected via the second cylinder and the top block, the second ball rail sensor support seat is installed on the upper T-block combination, the second sensor is installed on the second ball rail sensor support seat, the ball rail measuring rod is also installed on the upper T-block combination, a measuring point is marked on the ball rail measuring rod, the adjusting strip is further connected to the inner diameter cushion block, the inner diameter cushion block is connected to the first adjusting screw seat, and the first adjusting screw seat is connected to the first adjusting bolt, 3. The inner star wheel measuring machine of claim 2, wherein the two sets of spring plates, gaskets, and large gaskets attached to both sides of the T-block form a parallelogram combination, the lower T-block is fixed to the adjusting strip, and in a free state, the second spring pulls the spring support attached to the upper T-block forward, so that the measuring point marked on the ball rail measuring rod and the second sensor attached to the second ball rail sensor support seat both contact the ball rail of the inner star wheel, and the second sensor is positioned to measure the displacement of the sensor contact.

5. the outer diameter and ball rail measuring station includes an installation bottom plate, a second vertical column, a second cover, a second large bottom plate, a second reference assembly, a second measuring assembly, a second outer diameter measuring assembly, a second sensor support frame, a second optical fiber sensor, and a second pressing mechanism; the second vertical column and the second cover are installed on the installation bottom plate, the second large bottom plate is installed on the second vertical column and the second cover, the second reference assembly is installed at the center of the second large bottom plate, the second measurement assembly and the second outer diameter measurement assembly are radially arranged with the second reference assembly as the origin, the second sensor support frame is further installed on the second large bottom plate, the second optical fiber sensor is installed on the second sensor support frame, the second press mechanism is further installed on the second large bottom plate, and the second press mechanism is connected to the second reference assembly, 2. The inner star wheel measuring device according to claim 1, wherein the second optical fiber sensor is arranged to transmit an activation signal when it senses the inner star wheel.

6. the second outer diameter measuring assembly includes an adjusting block, a third sensor, an outer diameter measuring rod, a probe, an outer diameter cushion block, a second adjusting screw seat, and a second adjusting bolt; the third sensor is installed on the adjusting block, the outer diameter measuring rod is installed on the third sensor, the probe is installed on the outer diameter measuring rod, the adjusting block is connected to the outer diameter cushion block, the outer diameter cushion block is connected to the second adjusting screw seat, and the second adjusting screw seat is connected to the second adjusting bolt; 6. The measuring machine for an inner star wheel according to claim 5, wherein the probe is connected to the third sensor through the outer diameter measuring rod, and in an operating state, the probe is in contact with the inner star wheel, and the third sensor is arranged to measure the displacement of the sensor contact.

7. the second measuring assembly includes a second manual sliding table, a second mounting block, a sensor assembly set, a second small ball, a swing sliding table, a second mounting strip, a second ball support seat, a measuring ball, a second cushion block and a second cushion block seat; the second mounting block is installed on the second manual slide table, and two sensor assembly sets are installed on the second mounting block, and the sensor assembly set includes a sensor mounting seat, a fourth sensor, an extension measuring arm, and a second measuring rod; the fourth sensor is installed on the sensor installation seat, the fourth sensor is connected to the extended measuring arm, the extended measuring arm is connected to the second measuring rod, the second measuring rod is connected to the second small ball; the second installation block is further installed with the swing slide table, the swing slide table is connected to the second installation strip, the second installation strip is installed with the second ball support seat, the second ball support seat is installed with the measuring ball; the two sensor assembly sets are installed on both sides of the second installation strip; the second manual slide table is connected to the second cushion block, and the second cushion block is connected to the second cushion block seat; 6. The measuring machine for an inner star wheel according to claim 5, wherein the measuring ball and the second small ball have the same diameter, are both attached to the second installation strip via the second ball support seat, and are driven forward or backward by the swing-slide table. During measurement, the internal spring of the swing-slide table drives the measuring ball into contact with the inner star wheel, the second small ball presses the second measuring rod to generate a displacement, and the fourth sensor connected to the second measuring rod is arranged to measure the displacement of the sensor contact.

8. The swing slide table includes a swing slide table seat, a slider, a first guide rod, a ball slide sleeve, a guide sleeve, a second guide rod, a third spring, a needle-type cylinder, a top rod, and a plug; 8. The measuring machine for an inner star wheel according to claim 7, wherein the slider is installed within the swing slide table seat, the first guide rod is installed on the swing slide table seat, the ball slide sleeve is installed outside the first guide rod, the guide sleeve is installed outside the ball slide sleeve, the second guide rod is also installed on the swing slide table seat, the third spring is installed on the second guide rod, the first guide rod and the second guide rod pass through the slider and the swing slide table seat and are fixed, the needle-type cylinder is installed on the swing slide table seat, the needle-type cylinder is connected to the top rod, the plug is installed between the first guide rod and the slider, and the plug is installed outside the first guide rod and is in close contact with the slider.

9. the phase-locking station includes a phase-locking station support seat, a lower base plate, a third vertical column, a third cover, a phase-locking station plate, a rotating part, a positioning assembly, a driving assembly, a timing belt, a third sensor support frame, and a third optical fiber sensor; 2. The inner star wheel measuring machine of claim 1, wherein the phase-fixed station support seat is provided with the lower base plate, the third vertical column and the third cover are provided with the lower base plate, the phase-fixed station plate is provided with the third vertical column and the third cover, the phase-fixed station plate is provided with the rotating part, the positioning assemblies are provided on both sides of the rotating part, the phase-fixed station plate is further provided with the driving assembly, and the driving assembly is connected to the rotating part via the timing belt, the phase-fixed station plate is further provided with the third sensor support frame, and the third optical fiber sensor is provided on the third sensor support frame.

10. the phase locking station further includes a fourth cover; 10. The measuring machine for an inner star wheel according to claim 9, wherein the lower part of the rotating part and the driving assembly are installed inside the fourth cover.

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