CN211639823U - Protection mechanism for preventing positioner workbench from rotating - Google Patents
Protection mechanism for preventing positioner workbench from rotating Download PDFInfo
- Publication number
- CN211639823U CN211639823U CN202020204059.3U CN202020204059U CN211639823U CN 211639823 U CN211639823 U CN 211639823U CN 202020204059 U CN202020204059 U CN 202020204059U CN 211639823 U CN211639823 U CN 211639823U
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- gear box
- lifting gear
- wedge block
- safety pin
- telescopic piece
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Abstract
The utility model provides a prevent protection mechanism of positioner workstation gyration. The device comprises a driving assembly, a rotary worktable, a lifting gear box, a telescopic piece, a wedge block and a safety pin; the rotary worktable is connected to the lifting gear box through a rotary support; the outer part of the slewing bearing is provided with a gear ring; the driving assembly is arranged on the lifting gear box and used for driving the rotary worktable to rotate; the telescopic piece is arranged on the lifting gear box, and the movable end of the telescopic piece is connected with the wedge block; one end of the safety pin is provided with an inclined plane matched with the wedge block, and the other end of the safety pin is provided with a conical surface matched with the tooth groove on the gear ring; the safety pin can move along the horizontal direction under the extrusion of the wedge block. The utility model discloses in, through the number of teeth that the count switch measurement ring gear passed through in the unit interval to give electrical system with number of teeth change signal feedback, electrical system sends the action instruction to the extensible member, has realized automated control, can stop the rotary worktable and carry out real-time protection when gyration, has improved work efficiency and factor of safety.
Description
Technical Field
The utility model relates to a machine-building technical field, concretely relates to prevent protection mechanism of positioner workstation gyration.
Background
The rotation of the position changer working table is mainly realized by driving a reducer by a motor and then meshing and driving by a big pinion. The rotary protection of the workbench of the positioner in the current market is mainly realized by a motor with a brake or by self-locking by a worm and gear reducer.
The conventional modes of adopting brake protection or worm and gear self-locking are realized at the front end of a drive, only the brake is realized during work, and if the gear inside the reduction gearbox is subjected to gear beating, the two protection modes cannot play a role.
In view of the above, a protection mechanism for preventing the positioner from rotating is urgently needed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent protection mechanism of shifting machine workstation gyration to solve the shifting machine workstation gyration problem.
In order to achieve the purpose, the utility model provides a protection mechanism for preventing the positioner workbench from rotating, which comprises a driving assembly, a rotating workbench, a lifting gear box, a telescopic part, a wedge block, a safety pin and an electric control system; the rotary worktable is connected to the lifting gear box through a rotary support; the outer part of the slewing bearing is provided with a gear ring; the driving assembly is arranged on the lifting gear box and used for driving the rotary worktable to rotate; the telescopic piece is arranged on the lifting gear box, and the movable end of the telescopic piece is connected with the wedge block; the wedge block is arranged in the mounting seat of the lifting gear box and moves up and down under the driving of the telescopic piece; one end of the safety pin is provided with an inclined plane matched with the wedge block, and the other end of the safety pin is provided with a conical surface matched with the tooth groove on the gear ring; the safety pin is arranged in the mounting hole of the mounting seat of the lifting gear box, and can move along the horizontal direction under the extrusion of the wedge block. The electric control system is used for controlling the movement of the telescopic piece.
Preferably, an alarm switch is connected to a mounting seat of the lifting gear box and used for monitoring the movement of the wedge block and sending an alarm signal to the electric control system.
Preferably, a counting switch is mounted on the lifting gear box and used for measuring the number of teeth passing through the gear ring in unit time and feeding back the information of the number of teeth to the electric control system.
Preferably, the drive assembly comprises a motor, a reducer and a pinion; the motor is installed on the reduction gear, and the reduction gear is installed on lifting gear box, and the pinion is installed at the output of reduction gear, and the pinion meshes with slewing bearing's ring gear, drives the rotary worktable and rotates.
Preferably, the telescopic part is an air cylinder, one end of the air cylinder is connected with the lifting gear box through a fixed pin shaft, and the other end of the air cylinder is connected with the wedge block through a connecting pin shaft;
as another preferred scheme, the telescopic part is an oil cylinder, one end of the oil cylinder is connected with the lifting gear box through a fixed pin shaft, and the other end of the oil cylinder is connected with the wedge block through a connecting pin shaft;
as another preferred scheme, the telescopic piece is an electromagnet, the electromagnet is connected with the lifting gear box through a fixed pin shaft, and an iron core in the electromagnet is connected with a wedge block through a connecting pin shaft; a spring is arranged in the electromagnet and connected with the iron core; the expansion of the spring is controlled by the power on and power off of the electromagnet.
Use the technical scheme of the utility model, following beneficial effect has:
(1) the utility model discloses in, through the ejecting safety pin in inclined plane of voussoir, make the safety pin insert the tooth's socket of the outside ring gear of slewing bearing in, prevent that the rotary worktable from continuing the gyration, the inclined plane ability auto-lock of voussoir prevents that the safety pin from returning simultaneously, has effectively protected work piece and personal safety.
(2) The utility model discloses in, through the number of teeth that the count switch measurement ring gear passed through in the unit interval to give electrical system with number of teeth change signal feedback, electrical system sends the action instruction to the extensible member, has realized automated control, can stop the rotary worktable and carry out real-time protection when gyration, has improved work efficiency and factor of safety.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic view of the overall structure of a protection mechanism for preventing the rotation of a positioner table;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is an enlarged view of portion I of FIG. 1;
the device comprises a motor 1, a motor 2, a speed reducer 3, a pinion 4, a rotary worktable 5, a lifting gear box 6, a rotary support 7, a fixed pin shaft 8, a cylinder 9, a connecting pin shaft 10, a wedge block 11, a safety pin 12, an alarm switch 13, a counting switch 14 and an electric control system.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example 1:
referring to fig. 1 to 4, a protection mechanism for preventing a positioner workbench from rotating comprises a driving assembly, a rotating workbench 4, a lifting gear box 5, a telescopic part, a wedge block 10, a safety pin 11 and an electric control system 14; the rotary worktable 4 is connected to the lifting gear box 5 through a rotary support 6; the outer part of the slewing bearing 6 is provided with a gear ring; the driving component is arranged on the lifting gear box 5 and used for driving the rotary worktable 4 to rotate; the telescopic piece is arranged on the lifting gear box 5, and the movable end of the telescopic piece is connected with the wedge block 10; the wedge block 10 is arranged in a mounting seat of the lifting gear box 5 and moves up and down under the driving of the telescopic piece; one end of the safety pin 11 is provided with an inclined plane matched with the wedge block 10, and the other end of the safety pin is provided with a conical surface matched with the tooth groove on the gear ring; the safety pin 11 is arranged in a mounting hole of a mounting seat of the lifting gear box 5, and the safety pin 11 can move along the horizontal direction under the extrusion of the wedge block 10. An electronic control system 14 is used to control the movement of the telescoping members.
An alarm switch 12 is connected to the mounting seat of the lifting gear box 5, and the alarm switch 12 is used for monitoring the movement of the wedge 10 and sending an alarm signal to an electric control system 14.
And a counting switch 13 is arranged on the lifting gear box 5 and used for measuring the number of teeth passing through the gear ring in unit time and feeding back the information of the number of teeth to an electric control system 14.
The driving assembly comprises a motor 1, a speed reducer 2 and a pinion 3; the motor 1 is installed on the speed reducer 2, the speed reducer 2 is installed on the lifting gear box 5, the pinion 3 is installed at the output end of the speed reducer 2, and the pinion 3 is meshed with the gear ring of the slewing bearing 6 to drive the slewing table 4 to rotate.
The extensible member is a cylinder, an oil cylinder or an electromagnet, the extensible member is preferably a cylinder 8, one end of the cylinder 8 is connected with the lifting gear box 5 through a fixed pin shaft 7, and the other end of the cylinder is connected with a wedge block 10 through a connecting pin shaft 9.
The working principle of the protection mechanism for preventing the positioner workbench from rotating is as follows: the motor 1 drives the rotary table 4 connected with the rotary support 6 to rotate through the speed reducer 2 and the pinion 3, and the counting switch 13 measures the number of teeth passing in unit time. Since the rotation speed of the rotary table 4 is constant during operation, the number of teeth per unit time read by the counter switch 13 is constant. When the rotary worktable 4 suddenly rotates in a working or static state due to an accident, if the tooth frequency read by the counting switch 13 is not zero or is different from a set value, the information is fed back to the electric control system 14, the electric control system 14 sends a signal to enable the air cylinder 8 to act, the piston rod extends out to push the wedge block 10 to move downwards, particularly, the safety pin 11 extends forwards under the action of a matched inclined plane at the tail end and is inserted into a tooth groove of an external gear ring of the rotary support 6 to prevent the rotary worktable 4 from continuously rotating, meanwhile, the inclined plane of the wedge block 10 can be self-locked to prevent the safety pin 11 from returning, and the workpiece and the personal safety are effectively protected. Meanwhile, the alarm switch 12 detects the action of the wedge 10 and sends a signal alarm to the electronic control system 14.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A protection mechanism for preventing a position changer worktable from rotating is characterized by comprising a driving assembly, a rotating worktable, a lifting gear box, a telescopic piece, a wedge block and a safety pin; the rotary worktable is connected to the lifting gear box through a rotary support; the outer part of the slewing bearing is provided with a gear ring; the driving assembly is arranged on the lifting gear box and used for driving the rotary worktable to rotate; the telescopic piece is arranged on the lifting gear box, and the movable end of the telescopic piece is connected with the wedge block; the wedge block is arranged in the mounting seat of the lifting gear box and moves up and down under the driving of the telescopic piece; one end of the safety pin is provided with an inclined plane matched with the wedge block, and the other end of the safety pin is provided with a conical surface matched with the tooth groove on the gear ring; the safety pin is arranged in the mounting hole of the mounting seat of the lifting gear box, and can move along the horizontal direction under the extrusion of the wedge block.
2. The protection mechanism for preventing the rotation of the positioner workbench according to claim 1, wherein the driving assembly comprises a motor, a reducer and a pinion; the motor is installed on the reduction gear, and the reduction gear is installed on lifting gear box, and the pinion is installed at the output of reduction gear, and the pinion meshes with slewing bearing's ring gear, drives the rotary worktable and rotates.
3. The mechanism of claim 2, wherein the telescoping member is a cylinder, one end of the cylinder is connected to the lift gearbox via a fixed pin, and the other end of the cylinder is connected to the wedge via a connecting pin.
4. The mechanism of claim 2, wherein the telescoping member is an oil cylinder, one end of the oil cylinder is connected to the lift gear box via a fixed pin, and the other end of the oil cylinder is connected to the wedge via a connecting pin.
5. The mechanism of claim 2, wherein the telescoping member is an electromagnet, the electromagnet is connected to the lift gearbox via a fixed pin, and an iron core of the electromagnet is connected to the wedge via a connecting pin; a spring is arranged in the electromagnet and connected with the iron core; the expansion of the spring is controlled by the power on and power off of the electromagnet.
6. The protection mechanism for preventing the positioner workbench from rotating as claimed in any one of claims 1 to 5, further comprising an electric control system for controlling the movement of the telescopic member.
7. The mechanism of claim 6, wherein the mounting base of the lifting gear box is connected with an alarm switch, and the alarm switch is used for monitoring the movement of the wedge and sending an alarm signal to the electronic control system.
8. The protection mechanism of claim 7, wherein the lifting gear box is provided with a counting switch for measuring the number of teeth passing through the gear ring in unit time and feeding back the information of the number of teeth to the electronic control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204059.3U CN211639823U (en) | 2020-02-25 | 2020-02-25 | Protection mechanism for preventing positioner workbench from rotating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020204059.3U CN211639823U (en) | 2020-02-25 | 2020-02-25 | Protection mechanism for preventing positioner workbench from rotating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211639823U true CN211639823U (en) | 2020-10-09 |
Family
ID=72684839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020204059.3U Active CN211639823U (en) | 2020-02-25 | 2020-02-25 | Protection mechanism for preventing positioner workbench from rotating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211639823U (en) |
-
2020
- 2020-02-25 CN CN202020204059.3U patent/CN211639823U/en active Active
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