CN217818443U

CN217818443U - Automobile wheel hub outer lane screw thread detection mechanism

Info

Publication number: CN217818443U
Application number: CN202221681409.0U
Authority: CN
Inventors: 朱江良; 廖耀富; 朱世彬
Original assignee: Zhejiang Shengxi Precision Machinery Technology Co ltd
Current assignee: Zhejiang Shengxi Precision Machinery Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-15
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses an automobile wheel hub outer lane screw thread detection mechanism relates to and detects relevant technical field. Including the support, control center, settle the lower part of support has the wheel hub outer lane, top at the wheel hub outer lane, the support can reciprocate to be connected with and detect the fixed plate, it is equipped with the location head to detect the fixed plate, a plurality of screw threads detect the feeler gauge subassembly, the screw thread detects the feeler gauge subassembly and detects fixed plate rotatable coupling, the screw thread detects the feeler gauge subassembly and includes the screw thread gauge, the monitoring communication ware, the screw thread gauge is located the lower extreme that the screw thread detected the feeler gauge subassembly, it moves down to detect the fixed plate, the hole cover of location head and wheel hub outer lane connects, the screw thread gauge rotates with the screw hole of wheel hub outer lane to be connected, monitoring communication ware and control center communication. The utility model overcomes the defect that automobile wheel hub outer lane screw thread detection efficiency is low among the prior art, the utility model discloses beneficial effect does: the position error of the threaded hole of the automobile hub outer ring and the thread error of the threaded hole are detected at one time, and supporting detection is provided for full automation of a production line.

Description

Automobile wheel hub outer lane screw thread detection mechanism

Technical Field

The utility model belongs to the technical field of the detection correlation technique and specifically relates to indicate a detection mechanism of automobile wheel hub outer lane screw thread.

Background

The automobile hub is an important part of an automobile. The automobile hub not only bears the weight, but also provides accurate guide for the rotation of the hub, so the automobile hub bears the axial load and the radial load. This requires very accurate mounting of the automobile hub. The automobile wheel hub outer lane is equipped with the internal thread, through screw and automobile body coupling. The quality of the internal thread is directly related to the installation precision of the automobile hub. The internal thread usually detects with the screw thread no-go rule, relies on the manual work to go to detect the screw hole one by one, and the comparison expends time, and is inefficient. Chinese patent publication No. CN206794169U, published 26.12.2017, discloses an integrated machine for detecting end runout and thread detection of a hub bearing. The wheel hub workpiece to be detected is conveyed to the frame workbench through the feeding conveyer belt. A feeding manipulator is arranged on a rack worktable at one end of the feeding conveying belt; a turning station, an end jump and tooth number detection station, an unqualified product material channel station I, an image detection station, a thread go gauge detection station and an unqualified product material channel station II are sequentially arranged on one side of a feeding manipulator on a frame workbench; a detected workpiece is sequentially conveyed to a turning station, an end jump and tooth number detection station, an image detection station and a thread go-gauge detection station through a feeding manipulator; the method comprises the following steps that an unqualified workpiece is detected at an end jump and tooth number detection station and is conveyed to an unqualified product material channel station I by a feeding manipulator; unqualified workpieces are detected at the thread go-gauge detection station and are conveyed to an unqualified product material channel station I by a feeding manipulator. The thread go gauge detection station comprises a servo motor, a torque sensor, a synchronous belt, a three-jaw chuck and a thread go gauge; when the workpiece moves to a thread go-gauge detection station, the lifting cylinder ejects the three-jaw chuck out, the three-jaw chuck clamps the workpiece, the servo motor I drives the main shaft to rotate, and the workpiece is rotated to a detection position; the servo motor II drives the thread go gauge to descend to a detection position; the servo motor III drives the thread go gauge to rotate through the synchronous belt, and the thread of the workpiece is detected; each go gauge is independently configured with a torque sensor. Every leading to rule independent configuration torque sensor of this technical scheme detects the screw hole, has just replaced the manual work with the screw lead to rule screw in screw hole with the motor, has replaced operating personnel's feeling with the sensor, though detect the precision and can guarantee, but measurement efficiency still is low, is difficult to satisfy batch production.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome the defect that automobile wheel hub outer lane screw thread detection efficiency is low among the prior art, provide an automobile wheel hub outer lane screw thread detection mechanism that detection efficiency is high.

In order to realize the purpose, the utility model adopts the following technical scheme: the utility model provides an automobile wheel hub outer lane screw thread detection mechanism, which comprises a bracket, control center, settle the lower part of support has the wheel hub outer lane, top at the wheel hub outer lane, the support can reciprocate to be connected with and detect the fixed plate, it is equipped with the location head to detect the fixed plate, a plurality of screw thread detection plug gage subassembly, screw thread detection plug gage subassembly and detection fixed plate rotatable coupling, screw thread detection plug gage subassembly includes the thread gage, the monitoring communicator, the thread gage is located the lower extreme that the thread detected the plug gage subassembly, it moves down to detect the fixed plate, the hole cover of location head and wheel hub outer lane connects, the thread gage rotates with the screw hole of wheel hub outer lane to be connected, monitoring communicator and control center communication. The periphery of the hole of the outer ring of the hub is uniformly provided with a plurality of threaded holes on the circumference which takes the center of the hole as the circle center, the number and the arrangement of the thread detection plug gauge assemblies are the same as those of the threaded holes, and the positions are according to the design requirements. The detection fixing plate moves downwards, the positioning head is firstly sleeved with a hole of the outer ring of the hub to position the outer ring of the hub, meanwhile, the thread detection plug gauge assembly rotates, and then the thread gauge does descending and rotating actions in a threaded hole of the outer ring of the hub. The thread gauge can be qualified through the threaded hole of the outer ring of the hub. And the control center respectively collects the detected outer rings of the hubs. The position error of the threaded hole of the outer ring of the hub and the thread error of the threaded hole are detected at one time, and the detection efficiency is high. Is suitable for the full-automatic operation of the production line.

Preferably, the thread detecting plug gauge assembly further comprises: the upper end of the central shaft is rotatably connected with the bearing seat, and the upper end of the central shaft is fixedly connected with a synchronous belt pulley which is connected with a synchronous toothed belt. The synchronous cog belt connects the synchronous pulleys to synchronously rotate, so that the rotating torque detected by the thread gauges is the same, namely the detection environment is the same as the provided condition, and the detection quality is reliable.

Preferably, the telescopic sleeve is of a pipe structure, an elastic mechanism is arranged in a pipe hole of the telescopic sleeve, a sliding sleeve is fixedly connected to the upper end of the telescopic sleeve, the side face of the lower portion of the central shaft is in matched and sleeved connection with the sliding sleeve through a set key, and the lower end of the central shaft is in matched and connected with the elastic mechanism. The center pin cooperates with elastic mechanism, and the screw thread gauge possesses certain downward pressure when the screw hole of screw in wheel hub outer lane, and to the screw hole of wheel hub outer lane in the design range, the screw thread gauge can pass through smoothly. The key is used as the direction, and the perpendicularity of the thread gauge is guaranteed, so that the position relation of the threaded hole of the outer ring of the hub can be accurately detected, the threaded hole and the position error of the outer ring of the hub can be detected simultaneously, and the detection efficiency is improved.

Preferably, the lower end of the telescopic sleeve is fixedly connected with a connector, the connector is detachably connected with a chuck nut, the thread gauge is matched with the connector and the chuck nut, and the thread gauge is clamped with the connector. When the screw hole of the wheel hub outer lane that screw thread rule screw in machining error is big was blocked in the detection, because screw thread rule and joint, the screw thread rule can skid, has prevented the injury of the screw thread rule of the screw hole of the wheel hub outer lane that machining error is big effectively. In addition, the thread gauge is convenient to replace.

Preferably, the upper portion of the thread gauge is a connecting portion, the connecting portion is in a circular truncated cone shape, a connecting hole is formed in the lower end of the connector, and the connecting hole is a conical hole matched with the connecting portion. The contact area between the thread gauge and the joint is large, the transmission torque is also large, the thread gauge can be normally screwed into a qualified threaded hole of the outer ring of the hub, and the detection quality is ensured to be reliable.

Preferably, the end face of the connecting portion is provided with a plurality of expansion strips, the expansion strips are strip-shaped, the lower ends of the expansion strips are fixedly connected with the end face of the connecting portion, the upper ends of the expansion strips are suspended in the air, and the expansion strips are uniformly distributed on a concentric circle with the end face of the connecting portion. Increase the moment that connects the transmission for the screw thread rule, guarantee that the screw thread rule also can pass through at the screw hole of the wheel hub outer lane of permissible error, improve and detect the validity.

The utility model has the advantages that: the position error of the threaded hole of the automobile hub outer ring and the thread error of the threaded hole are detected at one time, and the detection efficiency is high. The method provides matched detection for the full-automatic operation of the production line and realizes the full-automatic production line. The detection quality of the threaded hole of the outer ring of the automobile hub is reliable. The screw gauge is convenient to replace, the automobile hub outer ring screw hole detection device is suitable for detecting the screw holes of different automobile hub outer rings, and the use cost is low.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a perspective view of the thread detecting plug gauge assembly of the present invention;

fig. 4 is a sectional view taken along line B-B of fig. 3.

In the figure:

the device comprises a bracket 1, a detection fixing plate 2, a synchronous belt wheel 3, a synchronous toothed belt 4, a thread detection plug gauge assembly 5, a positioning head 6, a hub outer ring 7,

Linear guide 11, shelf 12, screw gauge 51, collet nut 52, joint 53, telescopic sleeve 54, sliding sleeve 55, central shaft 56, bearing seat 57, monitoring communicator 58, monitoring device,

The connecting portion 511, the tensioning strip 512, the connecting hole 531, the elastic mechanism 541, the limiting plate 561 and the key 562.

Detailed Description

The invention is further described with reference to the accompanying drawings and the detailed description.

Example 1:

as shown in fig. 1 and 2, the automobile hub outer ring thread detection mechanism comprises a support 1, a detection fixing plate 2, a synchronous belt wheel 3, a synchronous toothed belt 4, a thread detection plug gauge assembly 5, a positioning head 6, a hub outer ring 7 and a control center (not shown). The hub outer ring 7 is the automobile hub outer ring. The middle of the hub outer ring 7 is provided with a hole. Threaded holes are uniformly distributed on the concentric circles of the holes. The hole of the hub outer ring 7 is matched with an automobile hub inner ring (not shown) to form a hub bearing. The threaded hole of the hub outer ring 7 is connected with the vehicle body through a screw. According to the design requirement, the central axis of the hole of the hub outer ring 7 is parallel to the central axis of the threaded hole of the hub outer ring 7, and the position relation among the holes falls within the specified error range according to the design requirement. The bracket 1 of the embodiment is in a vertical column shape. The hub outer ring 7 is arranged at the lower part of the bracket 1. The shelf 12 is provided at the lower portion of the stand 1. One side of the shelf 12 is fixedly connected with the bracket 1. The hub outer ring 7 is placed on the upper surface of the shelf 12. The detection fixing plate 2 is arranged above the hub outer ring 7. Above the shelf 12, the support 1 is provided with linear guides 11. The linear guide rail 11 extends in the up-and-down direction, i.e. parallel to the central axis of the hole of the hub outer ring 7. The side surface of the detection fixing plate 2 is matched with the linear guide rail 11, and the detection fixing plate 2 can move up and down on the side surface of the bracket 1. The plane of the detection fixing plate 2 is parallel to the plane of the shelf 12. The positioning head 6 is connected with the fixing plate 2 through a positioning head connecting shaft. The positioning head 6 is matched with the hole of the hub outer ring 7 in shape. This embodiment is illustrated with four sets of thread sensing plug gauge assemblies 5. Four sets of thread detection plug gauge assemblies 5 are columnar and are uniformly distributed on the circumference which takes the central axis of the positioning head 6 as the center. The thread detection plug gauge assembly 5 is rotatably connected with the detection fixing plate 2. The thread sensing plug gauge assembly 5 includes a thread gauge 51, a monitor communicator 58. A thread gauge 51 is located at the lower end of the thread sensing plug gauge assembly 5. The thread gauge 51 is a thread go gauge. The radius and the position of the circle of the central axes of the four thread gauges 51 are consistent with the design requirements of the threaded hole of the hub outer ring 7. The detection fixing plate 2 moves downwards along the linear guide rail 11, and the positioning head 6 is firstly sleeved with the hole of the hub outer ring 7. The locating head 6 presses the hub outer ring 7 against the shelf 12. Meanwhile, the thread detection plug gauge assembly 5 rotates, then the thread gauge 51 is in rotary connection with the threaded hole of the hub outer ring 7, the monitoring communicator 58 records the process of the thread rotary connection between the thread gauge 51 and the hub outer ring 7 in real time opposite to the thread gauge 51, and transmits the recorded process to the control center. And the control center respectively collects the detected hub outer ring 7 according to the qualified products and the unqualified products.

As shown in fig. 3 and 4, the thread detecting plug gauge assembly 5 further comprises: chuck nut 52, joint 53, telescopic sleeve 54, sliding sleeve 55, central shaft 56, bearing seat 57. The bearing block 57 is fixedly connected with the detection fixing plate 2. The telescoping sleeve 54 is a tube structure. The elastic mechanism 541 is arranged in the pipe hole of the telescopic sleeve 54. In this embodiment, the elastic mechanism 541 is a spring. The spring is sleeved in the tube hole of the telescopic sleeve 54. The upper end of the telescopic sleeve 54 is sleeved with the lower end of the central shaft 56. The lower end of the central shaft 56 is connected with the elastic mechanism 541 in a matching way. The sliding sleeve 55 is a tubular structure. The pipe holes of the sliding sleeve 55 are smaller than those of the telescopic sleeve 54. The lower end of the sliding sleeve 55 is fixedly connected with the upper end of the telescopic sleeve 54. The lower side of the central shaft 56 is fit with the sliding sleeve 55 through a key 562. A stopper plate 561 is connected to a lower end surface of the center shaft 56. The stopper plate 561 is a circular plate. The diameter of the limiting plate 561 is larger than the diameter of the pipe hole of the sliding sleeve 55 and smaller than the diameter of the pipe hole of the telescopic sleeve 545. The stopper plate 561 is pressed against the upper end of the spring. The upper portion of the central shaft 56 is rotatably connected to a bearing block 57. The upper end of the central shaft 56 is fixedly connected to the timing pulley 3. The synchronous pulley 3 is connected with a synchronous cog belt 4. The synchronous cog belt 4 is connected with a rotating mechanism. The rotating mechanism of the embodiment is a motor. The output shaft of the motor is connected with a power synchronous pulley (not shown). The power synchronous belt wheel is connected with a synchronous cog belt 4. The lower end of the telescopic sleeve 54 is connected with the thread gauge 51. The upper end of the joint 53 is fixedly connected with the lower end of the telescopic sleeve 54. The lower end of the spring is in press contact with the upper end face of the joint 53. The collet nut 52 is detachably connected to the joint 53. In this embodiment, the collet nut 52 is threadedly coupled to the lower end of the adapter 53. The thread gauge 51 is matched with the joint 53 and the chuck nut 52, and the thread gauge 51 is clamped with the joint 53. The lower end of the joint 53 is provided with a coupling hole 531. The lower part of the thread gauge 51 is a standard thread go gauge. The upper portion of the gauge 51 is a connection portion 511. The upper and lower portions of the thread gauge 51 are connected by a thread gauge connecting shaft. The connecting portion 511 has a circular truncated cone shape. The end face of the connecting part 511 is provided with a plurality of tensioning strips 512. The tensioning strip 512 is a strip. The end face of the large-diameter circle of the connecting part 511 is fixed with the upper end of the thread gauge connecting shaft. The lower end of the tensioning bar 512 is fixedly connected with the end face of the small-diameter circle of the connecting part 511. The upper end of the tensioning strip 512 is suspended. The tensioning strips 512 are uniformly distributed on a concentric circle with the end face of the small-diameter circle of the connecting part 511. The connection hole 531 is a conical hole matching the connection portion 511. The connecting portion 511 is inserted into the connecting hole 531, the side surface of the connecting portion 511 is attached to the hole wall of the connecting hole 531, and the upper end of the tensioning strip 512 is in pressure contact with the hole wall of the connecting hole 531. After the collet nut 52 is screwed to the lower end of the joint 53, the upper portion of the gauge 51 is engaged with the coupling hole 531 of the joint 53.

During detection, the detection fixing plate 2 moves downwards slowly along the linear guide rail 11, and firstly, the positioning head 6 moves downwards to press and position the hub outer ring 7 on the shelf 12. The thread sensing plug gauge assembly 5 then continues to move down. Meanwhile, the motor rotates to drive the synchronous belt pulley 3 connected with the thread detection plug gauge assembly 5 to rotate. The central shaft 56 rotates. Under the combined action of the elastic mechanism 541 and the key 562, the telescopic sleeve 54 moves downwards and rotates at the same time. The adapter 53 rotates with the telescope 54 and the standard thread gauge at the lower end of the thread gauge 51 also moves down and rotates at the same time. If the threaded hole of the hub outer ring 7 is processed qualified, the position of the threaded hole of the hub outer ring 7 deviates within the design allowable range, and the standard thread go gauge can smoothly enter the threaded hole of the hub outer ring 7. If the threaded hole of the hub outer ring 7 is too small, or the position deviation of the threaded hole of the hub outer ring 7 exceeds the design allowable range, the standard thread go gauge will receive resistance when engaging with the threaded hole of the hub outer ring 7. As the detection fixing plate 2 moves down, the central shaft 56 presses the upper end of the elastic mechanism 541, and the elastic force of the elastic mechanism 541 is transmitted to the thread gauge 51. If the spring force is able to overcome the resistance experienced, a standard thread go gauge can still engage the threaded bore of the hub outer ring 7. The threaded hole of the hub outer ring 7 is still within design tolerance. If the elastic force cannot overcome the resistance, the connection portion 511 and the connection hole 531 slip, the standard screw gauge does not rotate, and the center shaft 56 moves down to press the elastic mechanism 541. The threaded hole of the hub outer ring 7 is unqualified. The entire test procedure is monitored over time by the monitor communicator 58. At the same time, the monitoring communicator 58 transmits data of the test procedure to the control center. And the control center separately collects the qualified products and the unqualified products.

Claims

1. The utility model provides an automobile wheel hub outer lane screw thread detection mechanism, its characterized in that, it includes support (1), control center, the lower part of support (1) is settled there is wheel hub outer lane (7), in the top of wheel hub outer lane (7), support (1) can reciprocate to be connected with and detects fixed plate (2), it is equipped with location head (6), a plurality of screw thread detection feeler gauge subassembly (5) to detect fixed plate (2), screw thread detection feeler gauge subassembly (5) with detect fixed plate (2) rotatable coupling, screw thread detection feeler gauge subassembly (5) include screw thread gauge (51), supervision communicator (58), screw thread gauge (51) are located the lower extreme that screw thread detected feeler gauge subassembly (5), detect fixed plate (2) and move down, location head (6) with the hole cover of wheel hub outer lane (7) connects, screw thread gauge (51) with the screw hole of wheel hub outer lane (7) rotates to be connected, supervision communicator (58) with the control center communication.

2. The automobile hub outer ring thread detection mechanism according to claim 1, wherein the thread detection plug gauge assembly (5) further comprises: flexible cover (54), center pin (56), bearing frame (57) with detect fixed plate (2) fixed connection, the lower extreme of flexible cover (54) with thread gauge (51) are connected, the upper end of flexible cover (54) with the lower extreme of center pin (56) cup joints, the upper portion of center pin (56) with bearing frame (57) rotate to be connected, the upper end fixedly connected with synchronous pulley (3) of center pin (56), synchronous pulley (3) are connected with synchronous cog belt (4).

3. The automobile hub outer ring thread detection mechanism according to claim 2, characterized in that the telescopic sleeve (54) is of a pipe structure, an elastic mechanism (541) is arranged in a pipe hole of the telescopic sleeve (54), a sliding sleeve (55) is fixedly connected to the upper end of the telescopic sleeve (54), the side face of the lower portion of the central shaft (56) is in fit sleeve connection with the sliding sleeve (55) through a set key (562), and the lower end of the central shaft (56) is in fit connection with the elastic mechanism (541).

4. The automobile hub outer ring thread detection mechanism according to claim 2 or 3, characterized in that a joint (53) is fixedly connected to the lower end of the telescopic sleeve (54), a chuck nut (52) is detachably connected to the joint (53), the thread gauge (51) is matched with the joint (53) and the chuck nut (52), and the thread gauge (51) is clamped with the joint (53).

5. The automobile hub outer ring thread detection mechanism according to claim 4, characterized in that the upper portion of the thread gauge (51) is a connection portion (511), the connection portion (511) is in a circular truncated cone shape, a connection hole (531) is formed in the lower end of the joint (53), and the connection hole (531) is a conical hole matched with the connection portion (511).

6. The automobile hub outer ring thread detection mechanism according to claim 5, characterized in that a plurality of expansion strips (512) are arranged on the end face of the connection portion (511), the expansion strips (512) are strip-shaped, the lower ends of the expansion strips (512) are fixedly connected with the end face of the connection portion (511), the upper ends of the expansion strips (512) are suspended, and the expansion strips (512) are uniformly distributed on a concentric circle with the end face of the connection portion (511).