CN220853510U - Radial runout detection mechanism for cross axle - Google Patents
Radial runout detection mechanism for cross axle Download PDFInfo
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- CN220853510U CN220853510U CN202322575420.XU CN202322575420U CN220853510U CN 220853510 U CN220853510 U CN 220853510U CN 202322575420 U CN202322575420 U CN 202322575420U CN 220853510 U CN220853510 U CN 220853510U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 84
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- 125000006850 spacer group Chemical group 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 2
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- 230000004048 modification Effects 0.000 description 2
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a radial runout detection mechanism of a cross shaft, which comprises a detection table, wherein a clamping mechanism and a detection sleeve are arranged on the detection table, the clamping center of the clamping mechanism coincides with the center of the detection sleeve, the clamping mechanism is connected with a rotation driving mechanism for driving the clamping mechanism to rotate, and the detection sleeve is connected with a linear driving mechanism for driving the detection sleeve to linearly move towards the clamping mechanism; the detection sleeve is internally provided with a supporting block, the supporting block is provided with a guide post, the guide post penetrates through the detection sleeve and is in sliding fit with the detection sleeve, the detection sleeve is provided with a push rod mechanism for pushing the supporting block to move radially, the supporting block is provided with a positioning sleeve on the side face, facing the center of the detection sleeve, of the supporting block, and the positioning sleeve is internally provided with a pressure sensor which is connected with a measuring head through a first spring. The utility model utilizes the pressure sensor to detect, the detection result can be automatically output without manual reading, thus avoiding reading errors, ensuring the accuracy of measurement and improving the detection efficiency.
Description
Technical Field
The utility model belongs to the technical field of cross shaft detection, and particularly relates to a cross shaft radial runout detection mechanism.
Background
The universal joints are arranged at two ends of the middle shaft of the automobile steering system, each universal joint comprises a cross shaft and two universal joint forks, and the size precision of the cross shaft needs to be detected after the cross shaft is machined, so that the stability and the safety of transmission are ensured.
The existing radial runout detection mode is that one end of a cross shaft is clamped, a measuring head of a dial indicator is abutted against the outer wall of the other end of the cross shaft, the length direction of the measuring head is consistent with the radial direction of the cross shaft to be detected, then the cross shaft is driven to rotate at least one circle, and the radial runout of the cross shaft is calculated according to the reading change of the dial indicator.
The traditional detection mode is simpler and easy to operate, but manual reading and reading recording are needed, the efficiency is low, certain errors exist in reading, and the accuracy is difficult to guarantee.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a radial runout detection mechanism for a cross shaft, which improves the detection efficiency and accuracy.
In order to solve the problems, the utility model adopts the following technical scheme: the radial runout detection mechanism of the cross shaft comprises a detection table, wherein a clamping mechanism and a detection sleeve are arranged on the detection table, the clamping center of the clamping mechanism is overlapped with the center of the detection sleeve, the clamping mechanism is connected with a rotation driving mechanism for driving the clamping mechanism to rotate, and the detection sleeve is connected with a linear driving mechanism for driving the detection sleeve to linearly move towards the clamping mechanism; the detection sleeve is internally provided with a supporting block, the supporting block is provided with a guide post, the guide post penetrates through the detection sleeve and is in sliding fit with the detection sleeve, the detection sleeve is provided with a push rod mechanism for pushing the supporting block to radially move, the supporting block is provided with a positioning sleeve on the side face of the center of the detection sleeve, the positioning sleeve is internally provided with a pressure sensor, and the pressure sensor is connected with a measuring head through a first spring.
Further, push rod mechanism includes the screw with detection sleeve screw thread fit, the length direction of screw is unanimous with detection sleeve's radial, is provided with the second spring between supporting shoe and the detection sleeve inner wall.
Further, the locating sleeve side wall is provided with the spout of axial extension, the one end of gauge head is located the locating sleeve and with locating sleeve sliding fit, the outer wall of gauge head is provided with the slider, the slider is located the spout and with spout sliding fit.
Further, the pressure sensor is connected with a controller, and a display screen is arranged on the controller.
Further, the clamping mechanism comprises a three-jaw chuck.
Further, the detection bench is provided with a mounting frame, the mounting frame is provided with a horizontal transmission shaft, the three-jaw chuck is fixedly arranged at one end of the transmission shaft, and the other end of the transmission shaft is connected with the rotation driving mechanism.
Further, the rotation driving mechanism includes a motor.
Further, be provided with horizontal slide rail on the detection platform, be provided with on the slide rail with slide rail sliding fit's slide, be provided with the support frame on the slide, detection sleeve fixed mounting is in the support frame, the slide links to each other with linear drive mechanism.
Further, the linear driving mechanism is an electric cylinder.
The beneficial effects of the utility model are as follows: the utility model utilizes the pressure sensor to detect, the detection result can be automatically output without manual reading, thus avoiding reading errors, ensuring the accuracy of measurement and improving the detection efficiency.
Drawings
FIG. 1 is a schematic view in front cross-section of the present utility model;
FIG. 2 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 2;
Reference numerals: 1-a detection table; 2-a clamping mechanism; 3-detecting the sleeve; 4-a rotation driving mechanism; 5-a linear driving mechanism; 6, a guide post; 7, a supporting block; 8, a positioning sleeve; 9-a pressure sensor; 10-a first spring; 11-measuring head; 12-a second spring; 13-a screw; 14-a slide block; 15-a controller; 16-a display screen; 17-mounting rack; 18-a transmission shaft; 19-a slide rail; 20-a slide seat; 21-a supporting frame.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The utility model relates to a cross axle radial runout detection mechanism, which comprises a detection table 1, as shown in fig. 1, 2 and 3, wherein a clamping mechanism 2 and a detection sleeve 3 are arranged on the detection table 1, the clamping center of the clamping mechanism 2 coincides with the center of the detection sleeve 3, the clamping mechanism 2 is connected with a rotation driving mechanism 4 for driving the clamping mechanism 2 to rotate, and the detection sleeve 3 is connected with a linear driving mechanism 5 for driving the detection sleeve 3 to linearly move towards the clamping mechanism 2; the detection sleeve 3 is internally provided with a support block 7, the support block 7 is provided with a guide post 6, the guide post 6 penetrates through the detection sleeve 3 and is in sliding fit with the detection sleeve 3, the detection sleeve 3 is provided with a push rod mechanism for pushing the support block 7 to move radially, the side surface of the support block 7, facing the center of the detection sleeve 3, is provided with a positioning sleeve 8, the positioning sleeve 8 is internally provided with a pressure sensor 9, and the pressure sensor 9 is connected with a measuring head 11 through a first spring 10.
The detection table 1 adopts a horizontal metal plate, and a group of supporting legs are arranged at the bottom. The clamping mechanism 2 is used for clamping the tested cross shaft, the rotation driving mechanism 4 is used for driving the clamping mechanism 2 to rotate, and when the clamping mechanism 2 rotates, the cross shaft clamped by the clamping mechanism 2 also rotates along with the clamping mechanism.
The detection sleeve 3 is used for detecting radial runout of the cross shaft, and the linear driving mechanism 5 is used for pushing the detection sleeve 3 to axially move, so that the detected cross shaft can extend into the detection sleeve 3. The guide posts 6 serve as guides to ensure that the support blocks 7 can move stably in the radial direction of the detection sleeve 3. The locating sleeve 8 is a round sleeve and is arranged on the supporting block 7 through bolts. The pressure sensor 9 adopts a high-precision pressure sensor, and can accurately detect the pressure transmitted to the pressure sensor 9 by the first spring 10. The push rod mechanism is used for pushing the supporting block 7 to move towards the circle center of the detection sleeve 3, so that the measuring head 11 can be tightly attached to the outer wall of the cross shaft to be detected.
In detection, one end of the cross shaft to be detected is clamped by the clamping mechanism 2, the detection sleeve 3 is pushed to move towards the direction of the cross shaft by the linear driving mechanism 5 until the other end of the cross shaft to be detected stretches into the detection sleeve 3, the supporting block 7 is pushed to move towards the direction of the cross shaft to be detected by the push rod mechanism until the end of the measuring head 11 is tightly attached to the outer wall of the cross shaft to be detected, at the moment, the first spring 10 is properly compressed, the elastic force is transmitted to the pressure sensor 9, and the elastic force of the first spring 10 is detected by the pressure sensor 9 and serves as initial elastic force. Then, the clamping mechanism 2 and the tested cross shaft are driven to rotate for at least one circle by utilizing the rotation driving mechanism 4, in the rotation process, under the action of the elastic force of the first spring 10, the measuring head 11 always contacts the outer wall of the tested cross shaft, the radial position of the end part of the measuring head 11 is continuously changed due to the radial runout of the tested cross shaft, the length of the first spring 10 is continuously changed, the length change quantity of the first spring 10 is linearly related to the elastic force of the first spring, therefore, the elastic force of the first spring 10 is detected in real time by utilizing the pressure sensor 9, and the difference is divided by the elastic coefficient of the first spring 10 according to the difference between the detected value and the initial elastic force, so that the radial runout of the tested cross shaft can be calculated.
Because the pressure sensor 9 can automatically output the detection result in real time, no detection personnel is required to read, the workload of the detection personnel is reduced, the detection efficiency is improved, the reading error is avoided, and the detection accuracy is ensured.
After the detection is completed, the supporting block 7 is driven to reset by the push rod mechanism. Each cross has 4 shaft ends and therefore requires 4 tests.
In the utility model, the push rod mechanism specifically comprises a screw 13 in threaded fit with the detection sleeve 3, the length direction of the screw 13 is consistent with the radial direction of the detection sleeve 3, and a second spring 12 is arranged between the support block 7 and the inner wall of the detection sleeve 3. In order to ensure radial displacement of the support block 7 along the detection sleeve 3, the screw 13 is parallel to the guide post 6. The guide posts 6 can be arranged in two, so that the stability of the supporting blocks 7 is improved. The end of the screw 13 is contacted with the outer wall of the supporting block 7, when the screw 13 is rotated to enable the screw 13 to move towards the inside of the detection sleeve 3, the supporting block 7 can be pushed to move towards the circle center of the detection sleeve 3, and the second spring 12 is gradually lengthened; after the detection is completed, the screw 13 is rotated to enable the screw 13 to move towards the outside of the detection sleeve 3, the second spring 12 is gradually reset, and the supporting block 7 is pulled to reset.
In order to limit the measuring head 11 and improve the stability of the measuring head 11 during movement, the side wall of the positioning sleeve 8 is provided with an axially extending chute, one end of the measuring head 11 is positioned in the positioning sleeve 8 and is in sliding fit with the positioning sleeve 8, the outer wall of the measuring head 11 is provided with a sliding block 14, and the sliding block 14 is positioned in the chute and is in sliding fit with the chute. After the slide block 14 is matched with the slide groove, the rotation of the measuring head 11 can be prevented, and the measuring head 11 can be prevented from being separated from the positioning sleeve 8.
In order to directly obtain the detection result, the pressure sensor 9 is connected with a controller 15, and a display screen 16 is arranged on the controller 15. The pressure sensor 9 transmits the detected initial elastic force and the elastic force value in the rotation process of the cross shaft to the controller 15, the controller 15 automatically calculates the radial runout of the cross shaft, the calculated result is displayed by the display screen 16, and the detection result can be obtained more intuitively by a detector. Because the calculation process is quite simple, the controller 15 can adopt the existing conventional PLC. The controller 15 may be mounted on the inspection station 1 in a position suitable for viewing.
The clamping mechanism 2 can adopt a common clamp such as a vice, and preferably adopts a three-jaw chuck, the three-jaw chuck has the advantage of centering and clamping, the central line of the three-jaw chuck is coincident with the central line of the detection sleeve 3, and after the three-jaw chuck clamps the cross shaft, the central line of the detected cross shaft is also coincident with the central line of the detection sleeve 3.
In order to facilitate the rotation of the three-jaw chuck, the detecting table 1 is provided with a mounting frame 17, the mounting frame 17 is provided with a horizontal transmission shaft 18, the three-jaw chuck is fixedly arranged at one end of the transmission shaft 18, and the other end of the transmission shaft 18 is connected with the rotation driving mechanism 4. The rotary drive mechanism 4 comprises a motor which may be connected to the drive shaft 18 by means of a transmission such as a gear.
In order to ensure that the detection sleeve 3 stably moves axially, a horizontal sliding rail 19 is arranged on the detection table 1, the sliding rail 19 is arranged on the detection table 1 through bolts, a sliding seat 20 which is in sliding fit with the sliding rail 19 is arranged on the sliding rail 19, a support frame 21 is arranged on the sliding seat 20, the detection sleeve 3 is fixedly arranged on the support frame 21, two vertical support plates can be adopted for the support frame 21, the top edge of the support plate is arranged into an arc shape matched with the detection sleeve 3, and the detection sleeve 3 is welded at the top of the support plate. The slide 20 is connected to the linear drive mechanism 5. The slide rail 19 plays a role in guiding and positioning, and when the linear driving mechanism 5 pushes the slide carriage 20 to move along the slide rail 19, the slide carriage 20 drives the support frame 21 and the detection sleeve 3 to synchronously move.
The linear driving mechanism 5 may be an electric cylinder or a hydraulic cylinder.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. Radial detection mechanism that beats of cross axle, its characterized in that: the device comprises a detection table (1), wherein a clamping mechanism (2) and a detection sleeve (3) are arranged on the detection table (1), the clamping center of the clamping mechanism (2) coincides with the center of the detection sleeve (3), the clamping mechanism (2) is connected with a rotation driving mechanism (4) for driving the clamping mechanism (2) to rotate, and the detection sleeve (3) is connected with a linear driving mechanism (5) for driving the detection sleeve (3) to linearly move towards the clamping mechanism (2); be provided with supporting shoe (7) in detecting sleeve (3), be provided with guide post (6) on supporting shoe (7), guide post (6) run through detecting sleeve (3) and with detecting sleeve (3) sliding fit, be provided with the push rod mechanism who promotes supporting shoe (7) radial movement on detecting sleeve (3), be provided with spacer sleeve (8) on the side at supporting shoe (7) orientation detecting sleeve (3) center, be provided with pressure sensor (9) in spacer sleeve (8), pressure sensor (9) are connected with gauge head (11) through first spring (10).
2. The radial runout detection mechanism of claim 1, wherein: the push rod mechanism comprises a screw (13) in threaded fit with the detection sleeve (3), the length direction of the screw (13) is consistent with the radial direction of the detection sleeve (3), and a second spring (12) is arranged between the supporting block (7) and the inner wall of the detection sleeve (3).
3. The radial runout detection mechanism of claim 1, wherein: the utility model discloses a measuring device, including locating sleeve (8), measuring head (11), slider (14) are provided with locating sleeve (8), locating sleeve (8) lateral wall is provided with the spout of axial extension, one end of measuring head (11) is located locating sleeve (8) and with locating sleeve (8) sliding fit, the outer wall of measuring head (11) is provided with slider (14), slider (14) are located the spout and with spout sliding fit.
4. The radial runout detection mechanism of claim 1, wherein: the pressure sensor (9) is connected with a controller (15), and a display screen (16) is arranged on the controller (15).
5. The radial runout detection mechanism of claim 1, wherein: the clamping mechanism (2) comprises a three-jaw chuck.
6. The radial runout detection mechanism of claim 5, wherein: the three-jaw chuck is characterized in that a mounting frame (17) is arranged on the detection table (1), a horizontal transmission shaft (18) is arranged on the mounting frame (17), the three-jaw chuck is fixedly arranged at one end of the transmission shaft (18), and the other end of the transmission shaft (18) is connected with the rotation driving mechanism (4).
7. The cross-shaft radial runout detection mechanism of claim 6, wherein: the rotation driving mechanism (4) comprises a motor.
8. The radial runout detection mechanism of claim 1, wherein: the detection platform (1) is provided with a horizontal sliding rail (19), the sliding rail (19) is provided with a sliding seat (20) which is in sliding fit with the sliding rail (19), the sliding seat (20) is provided with a supporting frame (21), the detection sleeve (3) is fixedly arranged on the supporting frame (21), and the sliding seat (20) is connected with the linear driving mechanism (5).
9. The cross-shaft radial runout detection mechanism of claim 8, wherein: the linear driving mechanism (5) is an electric cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575420.XU CN220853510U (en) | 2023-09-21 | 2023-09-21 | Radial runout detection mechanism for cross axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322575420.XU CN220853510U (en) | 2023-09-21 | 2023-09-21 | Radial runout detection mechanism for cross axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220853510U true CN220853510U (en) | 2024-04-26 |
Family
ID=90777333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322575420.XU Active CN220853510U (en) | 2023-09-21 | 2023-09-21 | Radial runout detection mechanism for cross axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220853510U (en) |
-
2023
- 2023-09-21 CN CN202322575420.XU patent/CN220853510U/en active Active
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