CN214250938U

CN214250938U - Thread measuring mechanism

Info

Publication number: CN214250938U
Application number: CN202120272661.5U
Authority: CN
Inventors: 张国华; 石志庆; 张德民
Original assignee: Nanjing Marposs Automation Equipment Co ltd
Current assignee: Nanjing Marposs Automation Equipment Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-21
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a screw thread measuring mechanism, include: the device comprises a rotating assembly, a supporting assembly and a detecting assembly; the rotating assembly comprises a fixed plate and a motor, the workpiece is positioned on the fixed plate, and the motor drives the workpiece to rotate; the supporting assembly comprises a tray and a supporting cylinder, the tray is positioned above the fixing plate, and a through hole is formed in the tray; the tray is connected to the supporting cylinder, and the supporting cylinder drives the tray to move up and down; the detection assembly comprises a thread detector and a detection cylinder, the thread detector penetrates through the fixing plate and is connected to the detection cylinder, and the detection cylinder drives the thread detector to move up and down. In this way, the utility model discloses a support cylinder drive work piece business turn over and detect the position, the motor drives the rotatory switching that realizes different screw holes of work piece, utilizes the screw thread detector to rise and enters into the threaded hole of work piece and carry out automatic measure, improves measurement of efficiency, can satisfy the requirement that the work piece detected in batches better.

Description

Thread measuring mechanism

Technical Field

The utility model relates to a screw thread detection area, concretely relates to screw thread measuring mechanism.

Background

The hydraulic torque converter is an important part of an automatic transmission, the front end of the hydraulic torque converter is connected with a flywheel of an engine, an output part is connected with an input shaft of a planetary gear speed change mechanism, soft connection of the engine and the transmission is achieved, the service lives of the engine and the transmission can be prolonged, and meanwhile stepless speed change is achieved within a certain range. Due to the importance and use requirements of the hydraulic torque converter, the hydraulic torque converter is provided with three threaded holes, four threaded holes, six threaded holes and the like.

Under the prior art, because torque converter's weight reaches 10Kg, including the appearance is irregular, lead to artifical transport inconvenient, the location is inaccurate, can only pass through manual detection to the detection of its screw hole. The traditional method for detecting the threads of the hydraulic torque converter in the industry at present adopts a thread depth gauge and a thread go-no go gauge for detection, has low efficiency, large manual error and inaccurate measurement, cannot complete all detection and cannot realize online detection; or a thread depth meter is adopted, so that the clamping and positioning are difficult, and the measuring efficiency is low. Because torque converter quality is heavy, the appearance is unfavorable for snatching, drops easily in handling, injures by a crashing object and fish tail workman, can only use as the spot check when batch production, can't realize batch detection.

Disclosure of Invention

For solving the not enough of prior art existence, the utility model provides a screw thread measuring mechanism.

A thread measuring mechanism comprising: the device comprises a rotating assembly, a supporting assembly and a detecting assembly; the rotating assembly comprises a fixed plate and a motor, a workpiece is positioned on the fixed plate, and the motor drives the workpiece to rotate; the supporting assembly comprises a tray and a supporting cylinder, the tray is positioned above the fixing plate, and a through hole is formed in the tray; the tray is connected to the supporting cylinder, and the supporting cylinder drives the tray to move up and down; the detection assembly comprises a thread detector and a detection cylinder, the thread detector penetrates through the fixing plate, the thread detector is connected to the detection cylinder, and the detection cylinder drives the thread detector to move up and down.

Preferably, the tray further comprises a sleeve, the sleeve is arranged on the fixing plate, and the sleeve is located below the through hole of the tray.

Preferably, rotating assembly still includes the action wheel, follows driving wheel and hold-in range, the action wheel with follow the driving wheel setting on the fixed plate, the action wheel passes through the hold-in range with following the driving wheel and connects, the action wheel is connected on the motor, motor drive the action wheel is rotatory.

Preferably, the rotating assembly further comprises a pusher dog, the pusher dog is arranged on the driven wheel, and the driven wheel is contacted with the workpiece through the pusher dog.

Preferably, the supporting assembly further comprises a supporting plate and a guide rod, the supporting plate is arranged below the fixing plate, the supporting plate is connected with the tray through the guide rod, and the guide rod penetrates through the fixing plate.

Preferably, the support assembly further comprises a linear bearing, the linear bearing is arranged on the fixing plate, and the guide rod penetrates through the linear bearing.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:

the utility model provides a screw thread measuring mechanism, through supporting cylinder drive work piece business turn over detection position, the motor drives the rotatory switching that realizes different screw holes of work piece, utilizes the screw thread detector to rise and enters into the screw hole of work piece and carry out automatic measurement, improves measurement of efficiency, can satisfy the requirement that the work piece detected in batches better.

Drawings

Fig. 1 is a schematic structural diagram of a thread measuring mechanism of the present invention.

Fig. 2 is a schematic structural diagram of a rotating assembly in a thread measuring mechanism according to the present invention.

Fig. 3 is a schematic structural diagram of a support assembly in a thread measuring mechanism according to the present invention.

Fig. 4 is a schematic structural diagram of a detection assembly in the thread measuring mechanism of the present invention.

Fig. 5 is a schematic structural diagram of a detection device for a hydraulic torque converter, in which the thread measuring mechanism of the present invention is applied.

Fig. 6 is a schematic configuration diagram of a flatness measuring mechanism in the torque converter detecting apparatus.

Fig. 7 is a schematic diagram of the structure of a moving component in the detecting device of the torque converter.

FIG. 8 is a schematic diagram of a positioning assembly in a torque converter sensing device.

Fig. 9 is a schematic view of the structure of a checking assembly in the detecting device of the torque converter.

Description of reference numerals:

1. a thread measuring mechanism; 11. a rotating assembly; 111. a fixing plate; 112. a motor; 113. a driving wheel; 114. a driven wheel; 115. a synchronous belt; 116. a pusher dog;

12. a support assembly; 121. a tray; 122. a support cylinder; 123. a support plate; 124. a guide bar; 125. a linear bearing;

13. a detection component; 131. a thread detector; 132. detecting a cylinder;

14. a sleeve;

2. a flatness measuring mechanism; 21. a work table; 22. a base plate; 23. a pillar; 24. a sensor;

25. a moving assembly; 251. a fixed block; 252. a screw; 253. a nut; 254. a moving block; 255. a spring; 256. a slider; 257. moving the slide rail;

26. a positioning assembly; 261. a positioning frame; 262. positioning the air cylinder; 263. positioning a plate; 264. positioning the slide rail; 265. positioning the mandrel;

27. a lifting assembly; 271. a lifting plate; 272. a lifting cylinder;

28. inspecting the component; 281. a check block; 282. inspecting the cylinder;

3. a base member;

4. and (5) a workpiece.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to the drawings, a sensing apparatus for a torque converter includes: a thread measuring mechanism 1 and a flatness measuring mechanism 2.

The thread measuring mechanism 1 comprises a rotating assembly 11, a supporting assembly 12 and a detecting assembly 13. The rotating assembly 11 includes a fixed plate 111 and a motor 112, the workpiece 4 is located on the fixed plate 111, and the motor 112 drives the workpiece 4 to rotate. The motor 112 may employ a high resolution, high torque, fast response servo motor 112.

The rotating assembly 11 further comprises a driving wheel 113, a driven wheel 114 and a synchronous belt 115, the driving wheel 113 and the driven wheel 114 are arranged on the fixing plate 111, the driving wheel 113 and the driven wheel 114 are connected through the synchronous belt 115, the diameter of the driving wheel 113 is smaller than that of the driven wheel 114, the driving wheel 113 is connected to the motor 112, and the motor 112 drives the driving wheel 113 to rotate.

In order that the driven wheel 114 can better drive the workpiece 4 to rotate, the rotating assembly 11 further comprises a pusher dog 116, the pusher dog 116 is arranged on the driven wheel 114, the driven wheel 114 is in contact with the workpiece 4 through the pusher dog 116, the workpiece 4 is driven to rotate through the pusher dog 116, and the specific shape of the workpiece 4 can be designed according to the shape of the workpiece 4.

The supporting assembly 12 includes a tray 121 and a supporting cylinder 122, the tray 121 is located above the fixing plate 111, and a through hole is formed in the tray 121. The tray 121 can be made in a replaceable type section so as to be adaptable to different types of workpieces 4, increasing the expandability of the apparatus. The tray 121 is connected to a support cylinder 122, and the support cylinder 122 drives the tray 121 to move up and down. The workpiece 4 is initially positioned on the thread measuring mechanism 1 by the supporting device, and the workpiece 4 is placed on the tray 121 so that the central axis of the workpiece 4 coincides with the central axis of the through hole of the tray 121.

The support assembly 12 further includes a support plate 123 and a guide rod 124, the support plate 123 is disposed below the fixing plate 111, and the support plate 123 is connected to the tray 121 through the guide rod 124. The guide rods 124 are symmetrically distributed on the fixing plate 111, and the guide rods 124 penetrate through the fixing plate 111. The supporting plate 123 and the guide rod 124 are used for connecting the tray 121 and the supporting cylinder 122, so that the tray 121 is more stable in the process of moving up and down, and the supporting force is enhanced. In order to prevent deviation and shaking during the up-and-down movement, the support assembly 12 further includes a linear bearing 125, the linear bearing 125 is disposed on the fixing plate 111, and the guide rod 124 passes through the linear bearing 125, and the guide rod 124 is guided by the linear bearing 125.

In order to improve the positioning accuracy, the thread measuring mechanism 1 further comprises a sleeve 14, and the workpiece 4 is accurately positioned on the thread measuring mechanism 1 through the arrangement of the sleeve 14. The sleeve 14 is provided on the fixing plate 111, the sleeve 14 is positioned below the through hole of the tray 121, and the center axis of the sleeve 14 coincides with the center axis of the through hole of the tray 121. When the supporting cylinder 122 drives the tray 121 to descend, the workpiece 4 falls on the sleeve 14, the workpiece 4 is supported by the sleeve 14, and the lower shaft of the workpiece 4 can be inserted into the sleeve 14, so that the positioning accuracy of the workpiece 4 is effectively ensured. To save space, the sleeve 14 may be located in a bore in the driven pulley 114, the sleeve 14 being fixed to the fixed plate 111 without rotating with the driven pulley 114.

The detection assembly 13 comprises a thread detector 131 and a detection cylinder 132, the thread detector 131 penetrates through the fixing plate 111, the thread detector 131 is connected to the detection cylinder 132, and the detection cylinder 132 drives the thread detector 131 to move up and down. When the threaded hole of the workpiece 4 rotates above the thread detector 131, the thread detector 131 is lifted up by the detection cylinder 132 and enters the threaded hole to perform measurement. The thread gauge 131 may be any thread gauge 131 known in the art.

The flatness measuring mechanism 2 comprises a workbench 21, a bottom plate 22, a support column 23 and sensors 24, wherein the support column 23 is arranged on the bottom plate 22, the bottom plate 22 is connected to the workbench 21 through the support column 23, and the sensors 24 are arranged on the bottom plate 22 in an annular array. The worktable 21 is provided with a working hole position, the sensor 24 penetrates through the working hole position on the worktable 21, the workpiece 4 directly falls on the sensor 24, and the flatness of the workpiece 4 is measured through the numerical value sensed by each sensor 24.

In order to be suitable for different types and sizes of workpieces 4, the flatness measuring mechanism 2 further includes a moving assembly 25. The sensors 24 are connected to the base plate 22 by means of a movement assembly 25, and the diameter of the circle enclosed by the sensors 24 is varied by means of the movement assembly 25, so that it is possible to measure different types and sizes of workpieces 4.

The moving assembly 25 comprises a fixed block 251, a screw 252, a nut 253, a moving block 254 and a spring 255, wherein the fixed block 251 is arranged on the bottom plate 22, the screw 252 is connected to the fixed block 251, the moving block 254 is sleeved on the screw 252, and the moving block 254 is connected with the fixed block 251 through the spring 255. The nut 253 is sleeved on the screw rod 252, and the nut 253 is in threaded connection with the screw rod 252. The sensor 24 is arranged on the moving block 254, and when the moving block 254 moves to a proper position, the nut 253 sleeved on the screw 252 is screwed down to fix the moving block 254.

In order to enable the moving block 254 to move more stably, the moving assembly 25 further includes a sliding block 256, the sliding block 256 is disposed on the bottom plate 22, the moving block 254 is connected with the bottom plate 22 through the sliding block 256, a groove is disposed on the sliding block 256, and the moving block 254 is disposed in the groove of the sliding block 256. The moving assembly 25 further includes a moving slide rail 257, the moving slide rail 257 is disposed on the bottom plate 22, the slider 256 is connected to the bottom plate 22 through the moving slide rail 257, the slider 256 is disposed on the moving slide rail 257, and the slider 256 is slidably connected to the moving slide rail 257.

The flatness measuring mechanism 2 also includes a positioning assembly 26, and the positioning assembly 26 is located above the base plate 22. The positioning assembly 26 includes a positioning frame 261, a positioning cylinder 262, a positioning plate 263, a positioning slide rail 264 and a positioning core shaft 265, the positioning frame 261 is disposed on the working table 21, the positioning cylinder 262 is disposed on the positioning frame 261, the positioning plate 263 is connected with the positioning frame 261 through the positioning slide rail 264, and the positioning plate 263 is connected with the positioning slide rail 264 in a sliding manner. Positioning mandrel 265 is connected on locating plate 263, and positioning cylinder 262 drive locating plate 263 descends, and positioning mandrel 265 descends and gets into 4 holes of work piece under the drive of locating plate 263, and 4 position alignment of work piece to the accurate positioning to work piece 4 when realizing measuring.

This flatness measuring mechanism 2 still includes lift assembly 27, and lift assembly 27 includes lifter plate 271 and lift cylinder 272, and lifter plate 271 is located the top of workstation 21, is provided with the through-hole on the lifter plate 271. The elevation plate 271 is connected to an elevation cylinder 272, and the elevation cylinder 272 drives the elevation plate 271 to move up and down. The diameter of the through hole on the lifting plate 271 is larger than the diameter of the circle surrounded by the sensor 24, so that after the lifting plate 271 moves above the sensor 24, the lifting plate 271 continues to descend, and the workpiece 4 can be in direct contact with the sensor 24. The structure of the lifting assembly 27 can also adopt the structure of the supporting assembly 12 in the thread detecting mechanism.

The flatness measuring mechanism 2 further comprises a checking assembly 28, the checking assembly 28 is arranged on the workbench 21, the checking assembly 28 comprises a checking block 281 and a checking air cylinder 282, the checking block 281 is arranged on the workbench 21, the checking block 281 is positioned below the lifting plate 271, and the checking air cylinder 282 drives the lifting plate 271 to move horizontally. The elevation cylinder 272 may drive only the elevation plate 271 to move up and down, or may drive the elevation plate 271 and the inspection cylinder 282 to move up and down together.

In the actual use process, whole check out test set is fixed on basic unit 3, and basic unit 3 passes through expansion bolts and firmly fixes the factory building. The support assembly 12 is fixed to the base member 3 by a welding bracket, and its position is precisely adjusted by a spacer. The rotating assembly 11 is fixed on the base component 3 through a flat plate, the detecting assembly 13 is fixed on the base component 3 through an adjustable support, and the flatness measuring mechanism 2 is fixed on the base component 3 through an independent support. The support assembly 12 positions the workpiece 4 above, and the transport assembly transports the workpiece 4. The whole structure is fixed together by the base part 3, and is convenient to fix and transport.

When the workpiece 4 is loaded, the workpiece 4 is placed on the tray 121 of the support assembly 12 by the robot, and the tray 121 is lowered to the thread detection position by the support cylinder 122. The motor 112 is started to drive the workpiece 4 to rotate, when the threaded hole rotates to a position right above the thread detector 131, the rotation is stopped, and the detection cylinder 132 drives the thread detector 131 to ascend into the threaded hole to detect a first threaded hole. After the detection is finished, the detection motor 112 drives the workpiece 4 to rotate again, and when the second threaded hole rotates to a position right above the thread detector 131, the thread hole detector stops, and the thread hole detector ascends to enter the threaded hole to detect the second threaded hole. And after the detection is finished, sequentially detecting the threaded holes of other threaded holes.

When all the threaded holes are detected, the supporting component 12 lifts the workpiece 4 out of the thread detection position, the manipulator moves the workpiece 4 onto the lifting plate 271, the lifting cylinder 272 drives the lifting plate 271 to descend onto the inspection block 281, and at the moment, the workpiece 4 is located in the flatness inspection position. After it is determined by the inspection block 281 that the workpiece 4 is the type of the product to be inspected without error, the inspection cylinder 282 drives the elevating plate 271 to move horizontally to the flatness measuring position. The positioning mandrel 265 in the positioning assembly 26 descends under the action of the positioning cylinder 262 and is inserted into the inner hole of the workpiece 4 to perform fine positioning on the workpiece 4. After the positioning is finished, the lifting plate 271 is continuously lowered, so that the workpiece 4 is directly contacted with the sensor 24, the sensor 24 measures the flatness of the workpiece 4, collects data and comprehensively calculates the flatness.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A thread measuring mechanism, comprising: the device comprises a rotating assembly, a supporting assembly and a detecting assembly; the rotating assembly comprises a fixed plate and a motor, a workpiece is positioned on the fixed plate, and the motor drives the workpiece to rotate; the supporting assembly comprises a tray and a supporting cylinder, the tray is positioned above the fixing plate, and a through hole is formed in the tray; the tray is connected to the supporting cylinder, and the supporting cylinder drives the tray to move up and down; the detection assembly comprises a thread detector and a detection cylinder, the thread detector penetrates through the fixing plate, the thread detector is connected to the detection cylinder, and the detection cylinder drives the thread detector to move up and down.

2. A thread measuring mechanism according to claim 1, wherein: the tray is characterized by further comprising a sleeve, wherein the sleeve is arranged on the fixing plate and is located below the through hole of the tray.

3. A thread measuring mechanism according to claim 1, wherein: the rotating assembly further comprises a driving wheel, a driven wheel and a synchronous belt, the driving wheel and the driven wheel are arranged on the fixing plate, the driving wheel and the driven wheel are connected through the synchronous belt, the driving wheel is connected to the motor, and the motor drives the driving wheel to rotate.

4. A thread measuring mechanism according to claim 3, wherein: the rotating assembly further comprises a pusher dog, the pusher dog is arranged on the driven wheel, and the driven wheel is in contact with a workpiece through the pusher dog.

5. A thread measuring mechanism according to claim 1, wherein: the supporting component further comprises a supporting plate and a guide rod, the supporting plate is arranged below the fixing plate and connected with the tray through the guide rod, and the guide rod penetrates through the fixing plate.

6. A thread measuring mechanism according to claim 5, wherein: the support assembly further comprises a linear bearing, the linear bearing is arranged on the fixing plate, and the guide rod penetrates through the linear bearing.