CN212321050U

CN212321050U - Intelligent multi-station running-in no-load detection table

Info

Publication number: CN212321050U
Application number: CN202020461548.7U
Authority: CN
Inventors: 吴少威; 方良喜; 张志林
Original assignee: Heshi Industrial Technology Co ltd
Current assignee: Heshi Industrial Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-08
Anticipated expiration: 2030-04-01

Abstract

The utility model provides an intelligent multi-station running-in no-load detection table, which comprises a base, a supporting frame and a running-in detection mechanism, wherein the running-in detection mechanism comprises a loading mechanism, a driving mechanism, a bearing mechanism and an on-site detection assembly, and the number of the loading mechanism, the driving mechanism, the bearing mechanism and the on-site detection assembly is more than two and equal; the loading mechanism comprises a first servo motor, a first transmission belt is arranged at the output end of the first servo motor, the loading mechanism further comprises a first transmission wheel, a first transmission shaft, a first coupler, a first torque sensor, a second coupler, a connection shaft and a spline head which are sequentially connected, and the first transmission wheel is connected with the transmission belt. The detection platform can be compatible with various types of steering gears, and can detect the applied load value and the torque value in no-load detection in real time.

Description

Intelligent multi-station running-in no-load detection table

Technical Field

The utility model relates to a check out test set technical field specifically is a relate to an intelligence multistation running-in no-load detection platform.

Background

The steering gear is one of important parts in the automobile production process, the performance test of the steering gear is required in the production process of the steering gear, and the running-in no-load test is an important link in the performance test of the steering gear. However, the existing running-in no-load detection device is difficult to be compatible with various steering gears, and parameters in the running-in process cannot be set.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can compatible multiple steering gear's intelligent multistation running-in no-load examine test table.

In order to achieve the above object, the utility model provides an intelligent multistation running-in no-load detection platform includes the base, braced frame and running-in detection mechanism, braced frame fixes in the top of base, running-in detection mechanism is located braced frame's inside, be provided with the bottom plate in braced frame's inside, running-in detection mechanism includes loading mechanism, actuating mechanism, load-bearing mechanism and detection subassembly in place, actuating mechanism is located the inside of base, be provided with the slide rail on the bottom plate, loading mechanism can slide along the slide rail, load-bearing mechanism and detection subassembly in place set up the upper surface at the bottom plate, loading mechanism, actuating mechanism, the quantity of load-bearing mechanism and detection subassembly in place is more than two and equals, loading mechanism, actuating mechanism, load-bearing mechanism and detection subassembly in place all set up one-to-; the loading mechanism comprises a first servo motor, a first transmission belt is arranged at the output end of the first servo motor, the loading mechanism further comprises a first transmission wheel, a first transmission shaft, a first coupler, a first torque sensor, a second coupler, a connection shaft and a spline head which are sequentially connected, and the first transmission wheel is connected with the transmission belt.

According to the scheme, the loading mechanism, the driving mechanism, the bearing mechanism and the in-place detection assembly form a running-in detection station. When the steering gear needs to be ground, the steering gear is placed on the bearing mechanism, the worm of the steering gear is clamped into the spline head, and then the spline head drives the end of the worm rod to rotate so as to grind the steering gear. The first servo motor drives the spline head to rotate through the transmission mechanism. By adjusting the rotating speed of the first servo motor, the load applied to the worm rod end by the loading mechanism can be changed, and therefore the steering gear can be run-in under different load conditions. Because the detection table is provided with more than two running-in detection stations, different loads are applied to different running-in detection stations, the detection table can run in different types of steering gears simultaneously, and the purpose of being compatible with various steering gears is achieved. During running-in, the detection personnel can also measure the real-time value of the torque at any time through the first torque sensor.

Preferably, the number of the loading mechanisms is two, and the two loading mechanisms are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate.

The further scheme is that the number of the bearing mechanisms is two, and the two bearing mechanisms are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate.

The driving mechanisms are symmetrically arranged on the left side and the right side of the lower surface of the bottom plate.

The further scheme is that the number of the in-place detection assemblies is two, and the two in-place detection assemblies are symmetrically arranged at the left end and the right end of the upper surface of the bottom plate.

According to a further scheme, the loading mechanism further comprises a first protective cover and a second protective cover, the first transmission belt is arranged inside the first protective cover, the second protective cover is internally provided with an air cylinder, the output end of the air cylinder is provided with a connecting plate, and the connecting shaft is fixed on the connecting plate.

In the scheme, in the process of running-in the steering gear, the loading mechanism slides to a specified position along the sliding rail, then the cylinder pushes the spline head forwards, and the worm end of the steering gear is clamped into the spline head. Then, a first servo motor is started, the first servo motor drives a first driving wheel to rotate through a first driving belt, and the first driving wheel drives a spline head to rotate through a driving mechanism. The spline head drives the worm end of the steering gear to rotate, and the loading mechanism starts to load and run in the steering gear at the moment. After the loading running-in process is finished, the air cylinder drives the spline head to move backwards, and the spline head is separated from the worm end at the moment.

A further scheme is that the driving mechanism comprises a second servo motor and a third protection cover, a second driving belt is arranged at the output end of the second servo motor and arranged inside the third protection cover, the driving mechanism further comprises a second driving wheel, a second driving shaft, a third coupler, a second torque sensor, a fourth coupler, a third driving shaft and an output shaft which are sequentially connected, the driving mechanism further comprises a fourth protection cover and a shaft sleeve, the third coupler, the second torque sensor and the fourth coupler are arranged inside the fourth protection cover, and the shaft sleeve is wrapped outside the third driving shaft.

In the scheme, the second servo motor outputs power for the output shaft through each transmission mechanism.

According to a further scheme, the bearing mechanism comprises a mounting seat, a limiting seat, a supporting block and a fixing frame, the mounting seat is fixed on the bottom plate, the limiting seat and the supporting block are arranged on the upper surface of the mounting seat, the fixing frame is arranged on the limiting seat and the supporting block, a mounting hole is formed in the fixing frame, a driving piece is arranged on the inner side of the mounting hole, a transmission shaft is arranged at the bottom of the fixing frame, and the transmission shaft is connected with the output shaft.

In the above scheme, when the loading running-in process is finished, the loading mechanism retracts. At the moment, the second servo motor is started, and the second servo motor drives the output shaft to rotate. The output shaft drives the driving piece to rotate through the transmission shaft, and the driving piece drives the steering gear to rotate. Since the worm rod end of the steering gear is already withdrawn from the loading mechanism, the driving mechanism starts to carry out no-load detection experiment on the steering gear. And the detector observes the specific numerical value of the torque of the steering gear at the moment through the second torque sensor and then compares the numerical value with a preset value, so that whether the product reaches the standard or not is judged.

According to a further scheme, the in-place detection assembly comprises an upright column, a hoop and a photoelectric sensor, one end of the upright column is fixed on the upper surface of the bottom plate, the hoop is arranged on the outer wall of the upright column, and the photoelectric sensor is arranged on the hoop.

In the scheme, the photoelectric sensor is used for sensing whether the workpiece to be detected is placed on the detection station, and if the photoelectric sensor senses that the workpiece to be detected is placed on the detection station, the rest mechanisms of the detection equipment can work normally; if the photoelectric sensor does not sense that the workpiece to be detected is placed on the detection station, other mechanisms of the detection equipment pause.

Drawings

Fig. 1 is a structural diagram of an embodiment of the inspection table of the present invention.

Fig. 2 is a structural diagram of the hidden parts of the embodiment of the inspection table of the present invention.

Fig. 3 is an exploded view of a loading mechanism of an embodiment of the test station of the present invention.

Fig. 4 is an exploded view of the drive mechanism of an embodiment of the test station of the present invention.

Fig. 5 is a view showing a first view angle of a carrying mechanism of an embodiment of the inspection table according to the present invention.

Fig. 6 is a second view angle structure diagram of the carrying mechanism of the embodiment of the inspection table of the present invention.

Fig. 7 is a structural diagram of the in-place detection assembly of the embodiment of the detection table of the present invention.

Fig. 8 is a flowchart of an embodiment of a method for operating a test table.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1 and 2, fig. 2 is a structural view of fig. 1 with a base 1 and a support frame 2 hidden. The detection platform that this embodiment provided includes base 1, braced frame 2 and running-in detection mechanism, and braced frame 2 fixes in the top of base 1, and running-in detection mechanism is located braced frame 2's inside, is provided with bottom plate 3 in braced frame 2's inside, and running-in detection mechanism includes loading mechanism 4, actuating mechanism 5, load mechanism 6 and detection component 7 in place. The driving mechanism 5 is located inside the base 1, a slide rail 8 is arranged on the bottom plate 3, and the loading mechanism 4 can slide along the slide rail 8. The number of the loading mechanisms 4, the number of the driving mechanisms 5, the number of the bearing mechanisms 6 and the number of the in-place detection assemblies 7 are more than two and equal, and the loading mechanisms 4, the driving mechanisms 5, the number of the bearing mechanisms 6 and the number of the in-place detection assemblies 7 are all arranged in a one-to-one correspondence manner. A numerical control display screen 10 is arranged on the right side of the supporting frame 2, and a tester can check the torque value on the numerical control display screen 10 at any time. A hanging piece 11 is arranged on the left side of the supporting frame 2, and a work instruction book can be placed inside the hanging piece 11. A road wheel 12 is provided at the bottom of the base 2.

In the present embodiment, the number of the loading mechanism 4, the driving mechanism 5, the bearing mechanism 6 and the in-place detection assembly 7 is two. The two loading mechanisms 4 are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate 3. The two bearing mechanisms 6 are symmetrically arranged at the left side and the right side of the upper surface of the bottom plate 3. The two driving mechanisms 5 are symmetrically arranged at the left side and the right side of the lower surface of the bottom plate 3. Two in-place detection assemblies 7 are symmetrically arranged at the left end and the right end of the upper surface of the bottom plate 3. It should be noted that, a loading mechanism 4, a driving mechanism 5, a carrying mechanism 6 and an in-place detection component 7 constitute a detection station, and the number of detection stations in fig. 1 and 2 is two, but the number of detection stations in the technical solution of the present invention includes but is not limited to two, and the number of detection stations may be three or more. The number of detection stations can be determined according to actual needs in the production process.

Referring to fig. 3, the loading mechanism 4 includes a first servo motor 41, a first shield 42, a second shield 43, and a base 414, and a first driving belt 44 is disposed at an output end of the first servo motor 41, and the first driving belt 44 is disposed inside the first shield 42. A second shield is disposed on top of the base 414. The loading mechanism 4 further comprises a first driving wheel 45, a first transmission shaft 46, a first coupler 47, a first torque sensor 48, a second coupler 49, a connecting shaft 410 and a spline head 411 which are sequentially connected, the first driving wheel 45 is connected with the transmission belt 44, an air cylinder 412 is arranged inside the second protective cover 43, a connecting plate 413 is arranged at the output end of the air cylinder 412, and the connecting shaft 410 is fixed on the connecting plate 413. The first transmission shaft 46, the first coupling 47, the first torque sensor 48, and the second coupling 49 are disposed inside the second shield 43 and the base 414. The cylinder 412 drives the spline head 411 to move back and forth through the connection plate 413.

In this embodiment, when the steering gear needs to be ground, the steering gear is placed on the bearing mechanism 6, the loading mechanism 4 slides along the slide rail 8 to a specified position, then the air cylinder 412 pushes the spline head 411 forwards, and the worm end of the steering gear is clamped into the spline head 411. Then the spline head 411 drives the worm end to rotate, and the steering gear is worn in. The spline head 411 is driven to rotate by the first servo motor 41 through a transmission mechanism. By adjusting the speed of the first servo motor 41, the load applied to the worm rod end by the loading mechanism can be changed, thereby realizing running-in of the steering gear under different load conditions. Because the detection table is provided with more than two running-in detection stations, different loads are applied to different running-in detection stations, the detection table can run in different types of steering gears simultaneously, and the purpose of being compatible with various steering gears is achieved. During the running-in process, the first torque sensor 48 can detect the torque value of the loading mechanism 4 and display the torque value through the numerical control display screen 10. The torque value of the loading mechanism 4 can be observed by a detector through the numerical control display screen 10 at any time and can be adjusted at any time.

Referring to fig. 4, the driving mechanism 5 includes a second servo motor 51 and a third prevention cover 52, a second transmission belt 53 is provided at an output end of the second servo motor 51, and the second transmission belt 53 is provided inside the third prevention cover 52. The driving mechanism 5 further comprises a second transmission wheel 54, a second transmission shaft 55, a third coupling 56, a second torque sensor 57, a fourth coupling 58, a third transmission shaft 59 and an output shaft 510 which are connected in sequence. The drive mechanism 5 further includes a fourth shield 511 and a sleeve 512, the third coupling 56, the second torque sensor 57 and the fourth coupling 58 being disposed inside the fourth shield 511, and the sleeve 512 being wound around the outside of the third transmission shaft 59.

Referring to fig. 5 and 6, the bearing mechanism 6 includes an installation base 61, a limit base 62, a supporting block 63 and a fixing frame 64, the installation base 61 is fixed on the bottom plate 3, the limit base 62 and the supporting block 63 are arranged on the upper surface of the installation base 61, the fixing frame 64 is arranged on the limit base 62 and the supporting block 63, an installation hole 65 is formed on the fixing frame 64, a driving member 66 is arranged on the inner side of the installation hole 65, a transmission shaft 67 is arranged at the bottom of the fixing frame 64, and the transmission shaft 67 is connected with the output shaft 510.

Referring to fig. 2, 5 and 6, the detection station provided in the present embodiment further includes a pressing assembly 9. The compression assembly 9 includes a handle 91, a connecting rod 92 and a compression head 93. The fixing frame 64 is provided with a bulge 68, after a workpiece to be detected is placed in the bearing mechanism 6, the handle 91 is rotated, and the handle 91 drives the pressing head 93 to move downwards and press the bulge 68, so that the positioning effect is achieved. When the loading running-in process is finished, the loading mechanism 4 retracts. At this time, the second servo motor 51 is started, and the second servo motor 51 drives the output shaft 510 to rotate. The output shaft 510 drives the driving member 66 to rotate through the transmission shaft 67, and the driving member 66 drives the steering gear to rotate. Since the diverter worm-rod end has exited from the loading mechanism 4. At this point the drive mechanism 5 begins the no-load test of the steering gear. The tester detects the specific value of the torque of the steering gear through the second torque sensor 57, checks the torque value on the numerical control display screen 10, and compares the torque value with a preset value, so as to judge whether the product reaches the standard or not and whether running-in needs to be carried out again.

Referring to fig. 7, the in-place detection assembly 7 includes a pillar 71, a hoop 72 and a photo sensor 73, wherein one end of the pillar 71 is fixed on the upper surface of the bottom plate 3, the hoop 72 is disposed on the outer wall of the pillar 71, and the photo sensor 73 is disposed on the hoop. The photoelectric sensor 73 is used for sensing whether a workpiece to be detected is placed on the detection station, and if the photoelectric sensor 73 senses that the workpiece to be detected is placed on the detection station, the rest mechanisms of the detection equipment can work normally; if the photoelectric sensor 73 does not sense that the workpiece to be detected is placed on the detection station, other mechanisms of the detection equipment pause. Since the operation principle of the photoelectric sensor belongs to the common knowledge, the description is not expanded here.

Referring to fig. 8, the working method provided by the present invention comprises the following steps: first, step S1 is executed to place a workpiece to be inspected on the carriage 6. Next, step S2 is executed to insert the worm end of the workpiece to be inspected into the loading mechanism 4. Next, step S3 is executed, the loading mechanism 4 is started, and the loading mechanism 4 drives the workpiece to be detected to be in running-in. Next, step S4 is executed, and the loading mechanism 4 is retracted. And finally, executing the step S5, starting the driving mechanism 5, and driving the workpiece to be detected to carry out no-load detection by the driving mechanism 5.

In executing step S2, the loading mechanism 4 moves to a specified position along the slide rail 8, and then the air cylinder 412 pushes the spline head 411 forward so that the worm end is caught in the spline head 411. In step S3, the first servo motor 41 is activated, and the first servo motor 41 rotates the spline head 411 to wear in the steering gear. In step S4, the air cylinder 412 moves the spline head 411 backward, and the worm rod end is withdrawn from the spline head 411. In step S5, the second servo motor 51 is started, the second servo motor 51 drives the steering gear to rotate, the second torque sensor 57 detects the specific value of the steering gear torque at that time, and the value is displayed on the numerical control display screen 10. Through the steps, the detection table can complete running-in and no-load detection of the steering gear.

While the invention has been shown and described with reference to the present embodiments and preferred versions thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an intelligence multistation break-in no-load detection platform, includes base, braced frame and break-in detection mechanism, braced frame fixes the top of base, break-in detection mechanism is located braced frame's inside be provided with the bottom plate braced frame's inside, break-in detection mechanism includes loading mechanism, actuating mechanism, bears the weight of the mechanism and detection subassembly on throne, actuating mechanism is located the inside of base be provided with the slide rail on the bottom plate, loading mechanism can follow the slide rail slides, bear the weight of the mechanism with detection subassembly on throne sets up the upper surface of bottom plate, its characterized in that:

the loading mechanism, the driving mechanism, the bearing mechanism and the in-place detection assembly are more than two and equal in number, and the loading mechanism, the driving mechanism, the bearing mechanism and the in-place detection assembly are all arranged in a one-to-one correspondence manner;

the loading mechanism comprises a first servo motor, a first transmission belt is arranged at the output end of the first servo motor, the loading mechanism further comprises a first transmission wheel, a first transmission shaft, a first coupler, a first torque sensor, a second coupler, a connecting shaft and a spline head which are sequentially connected, and the first transmission wheel is connected with the transmission belt.

2. The inspection station of claim 1, wherein:

the number of the loading mechanisms is two, and the two loading mechanisms are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate.

3. The inspection station of claim 1, wherein:

the number of the bearing mechanisms is two, and the two bearing mechanisms are symmetrically arranged on the left side and the right side of the upper surface of the bottom plate.

4. The inspection station of claim 1, wherein:

the number of the driving mechanisms is two, and the two driving mechanisms are symmetrically arranged on the left side and the right side of the lower surface of the bottom plate.

5. The inspection station of claim 1, wherein:

the number of the in-place detection assemblies is two, and the two in-place detection assemblies are symmetrically arranged at the left end and the right end of the upper surface of the bottom plate.

6. The test station of any of claims 1 to 5, wherein:

the loading mechanism further comprises a first protective cover and a second protective cover, the first transmission belt is arranged inside the first protective cover, an air cylinder is arranged inside the second protective cover, a connecting plate is arranged at the output end of the air cylinder, and the connecting shaft is fixed to the connecting plate.

7. The inspection station of claim 6, wherein:

actuating mechanism includes second servo motor and third protection cover second servo motor's output is provided with the second drive belt, the second drive belt sets up the inside of third protection cover, actuating mechanism still includes second drive wheel, second transmission shaft, third shaft coupling, second torque sensor, fourth shaft coupling, third transmission shaft and the output shaft that connects gradually, actuating mechanism still includes fourth protection cover and axle sleeve, the third shaft coupling the second torque sensor with the fourth shaft coupling sets up the inside of fourth protection cover, the axle sleeve is wrapped around the outside of third transmission shaft.

8. The inspection station of claim 7, wherein:

the bearing mechanism comprises a mounting seat, a limiting seat, a supporting block and a fixing frame, the mounting seat is fixed on the bottom plate, the limiting seat and the supporting block are arranged on the upper surface of the mounting seat, the fixing frame is arranged on the limiting seat and the supporting block, a mounting hole is formed in the fixing frame, a driving piece is arranged on the inner side of the mounting hole, a transmission shaft is arranged at the bottom of the fixing frame, and the transmission shaft is connected with the output shaft.

9. The inspection station of claim 8, wherein:

the on-site detection assembly comprises an upright post, an embracing ring and a photoelectric sensor, one end of the upright post is fixed on the upper surface of the bottom plate, the embracing ring is arranged on the outer wall of the upright post, and the photoelectric sensor is arranged on the embracing ring.