CN210007557U - electric shafting locking mechanism - Google Patents
electric shafting locking mechanism Download PDFInfo
- Publication number
- CN210007557U CN210007557U CN201921201716.2U CN201921201716U CN210007557U CN 210007557 U CN210007557 U CN 210007557U CN 201921201716 U CN201921201716 U CN 201921201716U CN 210007557 U CN210007557 U CN 210007557U
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- elastic sleeve
- sleeve
- main shaft
- locking mechanism
- stepping motor
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Abstract
The utility model discloses an kind of electronic shafting locking mechanical system, the test platform comprises a support, the main shaft, step motor, the elastic sleeve, the ejector pin, the sensor seat, infrared sensor, the dustcoat, the briquetting, the cover floats, wherein elastic sleeve and step motor install respectively on the frame, the dustcoat is fixed on the elastic sleeve, the cover that floats is installed between elastic sleeve and dustcoat, the briquetting is along the circumferencial direction equipartition at the cover ditch inslot that floats, the ejector pin passes through threaded connection with the cover that floats, step motor drives the ejector pin and rotates, thereby the ejector pin promotes briquetting extrusion elastic sleeve, increase the frictional force between elastic sleeve and the main shaft, realize the locking to the main shaft, the utility model provides a kind of electronic shafting locking mechanical system has compact structure, small, processing installation requirement is low, locking is efficient, reliability and high characteristics of security.
Description
Technical Field
The utility model relates to an kind of locking mechanism, especially kind of electronic shafting locking mechanism.
Background
The shafting locking mechanism is widely applied to various devices and precision instruments, and is mainly characterized by realizing the quick and reliable locking of a shafting.
The shafting locking mode in the prior art mainly has two modes.
the locking is carried out by a gear pair or worm-gear pair transmission mode, the mode has complex structure and larger volume, and the requirements on the processing and mounting precision of a locking structural part are higher and difficult to realize.
And the other types are hinged through two semicircular hoop braking members , and the other end is locked by a locking member connecting mode, so that the locking efficiency is low, the reliability and the safety are not high, and the locking device is not suitable for automatic locking occasions of small-sized equipment and precise instruments.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides an kind of electronic shafting locking mechanism, it can solve current shafting locking mechanism structure complicacy, the volume is great, processing installation requires high, locking inefficiency, reliability and security scheduling problem not high.
The technical scheme is that the device comprises a machine base, a main shaft, a stepping motor, an elastic sleeve, an ejector rod, a sensor seat, an infrared sensor, an outer cover, a pressing block and a floating sleeve, wherein the elastic sleeve and the stepping motor are respectively arranged on the machine base; the sensor seat is arranged on the elastic sleeve, the infrared sensor arranged on the sensor seat is aligned with the groove on the ejector rod, and when a signal at the receiving end of the sensor is in a normally-on or normally-off state, the control system judges that the sensor is in a completely-locked or unlocked state, so that automatic control is realized.
Compared with the prior art, the utility model has the advantages of it is following.
1. The electric shafting locking mechanism has the advantages of simple and compact structure, low requirements on processing and assembling precision, easy realization and high locking efficiency, and is particularly suitable for being applied to various miniaturized equipment and precision instruments.
2. Whether locking and unlocking are in place or not can be judged through the infrared sensor, the locked-rotor time of the stepping motor is reduced, the reliability and the safety of locking and unlocking are improved, and the long-life operation of equipment is realized.
3. The processing technology is simple, the installation and debugging are convenient, the manufacturing cost is low, the modularized production can be carried out, and the can be pushed in large batch and used conveniently.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view taken along line a-a in fig. 1.
Shown in the figure: 1-machine base, 2-main shaft, 3-step motor, 4-elastic sleeve, 5-ejector rod, 6-sensor seat, 7-infrared sensor, 8-outer cover, 9-press block and 10-floating sleeve.
Detailed Description
As shown in fig. 1 and 2, the elastic sleeve 4 and the stepping motor 3 are respectively installed on the machine base 1 through screws, the outer cover 8 is fixed on the elastic sleeve 4 through screws, the floating sleeve 10 is installed between the elastic sleeve 4 and the outer cover 8 and can slide along the radial direction of the main shaft 2, three pressing blocks 9 are uniformly distributed in a groove of the floating sleeve 10 along the circumferential direction, the ejector rod 5 is connected with the floating sleeve 10 through threads, and the stepping motor 3 drives the ejector rod 5 to rotate, so that the ejector rod 5 pushes the pressing block 9 at the tail end of the ejector rod to extrude the elastic sleeve 4, the friction force between the elastic sleeve 4 and the main shaft 2 is increased, and the locking of the main shaft 2 is realized; the sensor seat 6 is arranged on the elastic sleeve 4 through a screw, the transmitting end and the receiving end of the infrared sensor 7 are respectively connected on the sensor seat 6 through glue, and the transmitting end and the receiving end are aligned and are just opposite to the kidney-shaped groove on the mandril 5.
The elastic sleeve 4, the ejector rod 5 and the pressing block 9 are made of beryllium bronze materials, the main shaft 2 is made of 40Cr materials, the main shaft 2 is tightly attached to the elastic sleeve and deformed under the action of locking force, and the main shaft 2 is locked through friction force.
Three grooves are uniformly distributed on the inner surface of the floating sleeve 10, and three pressing blocks 9 are respectively arranged in the grooves.
The end of the ejector rod 5 is of an external thread structure, and forms a thread pair with the internal thread on the floating sleeve 10, and the end is of a waist-shaped hole and is matched with the output shaft of the stepping motor 3.
After the push rod 5 pushes the pressing block 9 at the tail end of the push rod to be incapable of moving continuously to the elastic sleeve 4, the push rod 5 rotates continuously to enable the thread pair between the push rod 5 and the floating sleeve 10 to pull the floating sleeve 10 to move to the end of the push rod 5, and therefore the other two pressing blocks 9 are driven to press the elastic sleeve 4.
The transmitting end and the receiving end of the infrared sensor 7 are respectively arranged on the sensor seat 6, and the infrared sensor 7 is over against the kidney-shaped groove on the mandril 5.
When the signals of the transmitting end and the receiving end of the infrared sensor 7 are normally on or normally off, the control system judges that the ejector rod 5 is completely ejected, the stepping motor 3 is cut off to enable the ejector rod, and the stepping motor 3 stops working.
Example (b):
electric shafting locking mechanism, a locking for to unipolar indexing mechanism shafting locking, locking structure part includes elastic sleeve 4 and step motor 3 and passes through the mounting screw respectively on frame 1, dustcoat 8 passes through the fix with screw on elastic sleeve 4, floating sleeve 10 is installed between elastic sleeve 4 and dustcoat 8, can follow main shaft 2 radial slip, three briquetting 9 along the circumferencial direction equipartition at floating sleeve 10 ditch inslot, ejector pin 5 passes through threaded connection with floating sleeve 10, step motor 3 drives ejector pin 5 and rotates, thereby ejector pin 5 promotes its terminal briquetting 9 extrusion elastic sleeve 4, increase the frictional force between elastic sleeve 4 and the main shaft 2, realize the locking to main shaft 2.
The locking control part receives signals through the infrared sensor 7, the transmitting end and the receiving end of the infrared sensor 7 are respectively connected to the sensor seat 6 through glue, the transmitting end and the receiving end are aligned and just face to the kidney-shaped groove on the ejector rod 5, the sensor seat 6 is installed on the elastic sleeve 4 through screws, when the signals of the transmitting end and the receiving end of the infrared sensor 7 are normally on or normally off, the control system judges that the ejector rod 5 is completely dead against, the stepping motor 3 is cut off to enable the stepping motor at the moment, the stepping motor 3 stops working, and the electric locking and unlocking functions are achieved.
The elastic sleeve 4, the ejector rod 5 and the press block 9 are made of beryllium bronze materials, the main shaft 2 is made of 40Cr materials, the main shaft 2 is tightly attached to the main shaft 2 due to deformation under the action of locking force, the main shaft 2 is locked through friction force, and the friction pair is large in material combination friction force and has an anti-friction effect of .
Three grooves are uniformly distributed in the inner surface of the floating sleeve 10, three pressing blocks 9 are respectively arranged in the grooves, and the pressing blocks 9 are in clearance fit with the floating sleeve 10 and can freely slide along the radial direction of the floating sleeve 10.
The end of the ejector rod 5 is of an external thread structure, and forms a thread pair with the internal thread on the floating sleeve 10, and the end is of a waist-shaped hole and is matched with the output shaft of the stepping motor 3.
After the ejector rod 5 pushes the pressing block 9 at the tail end of the ejector rod to be incapable of moving continuously to the elastic sleeve 4, the ejector rod 5 rotates continuously to enable the thread pair between the ejector rod 5 and the floating sleeve 10 to pull the floating sleeve 10 to move to the end of the ejector rod 5, the other two pressing blocks 9 are driven to press the elastic sleeve 4, the three pressing blocks 9 are enabled to press the elastic sleeve 4 simultaneously, the elastic sleeve 4 is enabled to be in full contact with the friction pair formed by the main shaft 2, and friction force is increased.
The device is integrated and modularized, has the characteristics of compact structure, small size, low requirements on processing and installation, high locking efficiency, high reliability and high safety, and can well meet the requirements of a single-shaft indexing mechanism on the locking device.
Of course, the present invention can have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (7)
- The locking mechanism for the electric shafting of the 1 and types comprises a machine base, a main shaft, a stepping motor, an elastic sleeve, an ejector rod, a sensor seat, an infrared sensor, an outer cover, a pressing block and a floating sleeve, and is characterized in that the elastic sleeve and the stepping motor are respectively arranged on the machine base, the outer cover is fixed on the elastic sleeve, the floating sleeve is arranged between the elastic sleeve and the outer cover, the pressing block is uniformly distributed in a groove of the floating sleeve along the circumferential direction, the ejector rod is in threaded connection with the floating sleeve, the stepping motor drives the ejector rod to rotate, so that the ejector rod pushes the pressing block to extrude the elastic sleeve, the friction force between the elastic sleeve and the main shaft is increased, the locking of the main shaft is realized, the sensor seat is arranged on the.
- 2. The electric shafting locking mechanism as claimed in claim 1, wherein the elastic sleeve, the ejector rod and the pressing block are made of beryllium bronze, the main shaft is made of 40Cr material, the elastic sleeve deforms under the action of locking force to be tightly attached to the main shaft, and the main shaft is locked through friction force.
- 3. The electric shafting locking mechanism as claimed in claim 1, wherein three grooves are uniformly distributed on the inner surface of the floating sleeve, and three pressing blocks are respectively mounted in the grooves.
- 4. The electric shafting locking mechanism as claimed in claim 1, wherein the top bar has an external thread structure to form a thread pair with the internal thread on the floating sleeve, and the other end has a waist-shaped hole to match with the output shaft of the stepping motor.
- 5. The electric shafting locking mechanism according to claim 1, 3 or 4, wherein when the push rod pushes the pressing block at the end of the push rod to move continuously towards the elastic sleeve, the push rod rotates continuously to enable the thread pair between the push rod and the floating sleeve to pull the floating sleeve to move towards the end of the push rod, so as to drive the other two pressing blocks to press the elastic sleeve.
- 6. The electric shafting locking mechanism as claimed in claim 1, wherein the transmitting end and the receiving end of the infrared sensor are respectively mounted on the sensor seat, and the infrared sensor is opposite to the groove on the mandril.
- 7. The electric shafting locking mechanism according to claim 1 or 6, wherein when the signals of the transmitting end and the receiving end of the infrared sensor are normally on or normally off, the control system judges that the ejector rod is completely dead, and at the moment, the stepping motor is cut off to enable the stepping motor, and the stepping motor stops working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921201716.2U CN210007557U (en) | 2019-07-27 | 2019-07-27 | electric shafting locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921201716.2U CN210007557U (en) | 2019-07-27 | 2019-07-27 | electric shafting locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210007557U true CN210007557U (en) | 2020-01-31 |
Family
ID=69311018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921201716.2U Active CN210007557U (en) | 2019-07-27 | 2019-07-27 | electric shafting locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210007557U (en) |
-
2019
- 2019-07-27 CN CN201921201716.2U patent/CN210007557U/en active Active
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