CN108280958B

CN108280958B - Rotating station alarm device for high-temperature equipment

Info

Publication number: CN108280958B
Application number: CN201810118355.9A
Authority: CN
Inventors: 李国勇
Original assignee: Heilongjiang Tetong Electric Co ltd
Current assignee: Heilongjiang Tetong Electric Co ltd
Priority date: 2018-02-06
Filing date: 2018-02-06
Publication date: 2023-04-11
Anticipated expiration: 2038-02-06
Also published as: CN108280958A

Abstract

The invention discloses a rotary station alarm device for high-temperature equipment, which comprises a movable bottom plate, an electric ring, a contact head and a contact rod, wherein the electric ring is arranged in the middle of the movable bottom plate and is in insulated connection with the movable bottom plate, the contact head comprises a bent contact end and a connecting end, the contact head is arranged on the periphery of the electric ring in a surrounding manner by one side of the bent contact end, and the contact rod is connected with the connecting end of the contact head. The invention innovatively adopts a pure mechanical structure mode to alarm the line position of the workpiece in a high-temperature state in time, can detect the workpiece at the first time of dislocation and send out a signal, has the advantages of quick response, high reliability and low cost, successfully solves the defect that the prior art can only adopt expensive electronic equipment for detection or cannot adopt expensive electronic equipment for detection, and has higher market value.

Description

Rotating station alarm device for high-temperature equipment

Technical Field

The invention relates to the field of high-temperature processing equipment, in particular to a detection alarm for the state of a workpiece in processing in the high-temperature processing equipment.

Background

In the production process of high-temperature processing equipment, the core temperature of a processing center can reach 500-600 ℃ or even higher. At this ambient temperature, the electronic devices or some precision measurement devices are generally either inoperable or damaged by high temperatures, thus causing blind areas of monitoring of the machined workpiece. However, especially at the rotating station, it is very important to monitor the position of the processed workpiece, and if the workpiece is displaced during the rotating process, the displacement will cause the processing accuracy to be affected and cause the processing failure, and if the displacement occurs, the displacement will affect the normal operation of the equipment and cause the fault or even damage of the processing equipment, so it is very important for the processing equipment to detect the position of the workpiece during the processing and send out an alarm signal at the position deviated from the predetermined position.

However, most of the existing position alarm devices adopt electronic detection or infrared detection of the types such as infrared detection, contact switches or limit switches, etc., and have short service life and poor precision in a high-temperature environment or cannot work in the environment at all, and electronic elements with high temperature resistance are very expensive, and the cost of the whole equipment is high.

Disclosure of Invention

The invention aims to solve the problem of how to provide an alarm device for a rotary station under the condition of ensuring lower cost, which can ensure that the device can work in an environment with the temperature of more than 500 ℃ and can alarm the dislocation of workpieces.

In order to solve the problems, the invention provides a rotary station alarm device for high-temperature equipment, which comprises a movable bottom plate, an electric ring, a contact head and a contact rod, wherein the electric ring is arranged in the middle of the movable bottom plate and is in insulated connection with the movable bottom plate, the contact head comprises a bent contact end and a connecting end, the contact head is arranged on the periphery of the electric ring in a surrounding manner at one side of the bent contact end, and the contact rod is connected with the connecting end of the contact head. A contact type alarming mode is pioneered, and the workpiece is contacted with the contact rod in the displacement process to push the contact rod, so that the bent contact end of the contact head is driven to be communicated with the electric ring, and the effect of electric alarming is achieved. Because this structure does not relate to precision components such as micro-gap switch, only triggers the alarm through mechanical structure to reach the purpose of reporting to the police, all have the characteristics that the structure is firm, long service life, and the warning precision is high, and application scope is extensive.

The middle part of the contact head is provided with a rotating shaft, and the contact head is fixed on the movable bottom plate 1 through the rotating shaft. The motion mode of contact can make contact bar and work piece contact back to the transmission of contact better through rotating, can improve the warning precision.

Preferably, still include spacing post, spacing post sets up in the contact head with crooked contact end opposite side of direction of bending, through adding spacing post, can prevent that overall structure from moving forward because of inertial reason in the in-process along with the work piece removes, the mistake switches on the alarm, influences the reliability.

Still include the extension spring, the extension spring set up on movable bottom plate, and be connected with the contact, the extension spring can apply the pulling force that has to spacing post direction to the contact. The effect of extension spring is then one and reduces the inertia that removes and to the influence that the alarm mistake touched, improves the warning precision for normal removal can both hug closely spacing post in the pause, guarantees not to take place the mistake and touches.

A return spring is arranged in the rotating shaft. The addition of a return spring also solves the inertia problem of the movement.

The electric ring is fixed on the movable bottom plate through an insulating bolt. The insulating bolt can be used for well fixing the electric ring on the movable bottom plate, and can ensure the insulating effect and prevent the occurrence of false alarm.

The contact is made of a metal material. The metal contact can conduct electricity better, and the alarm sensitivity is improved.

The method has the following beneficial effects:

1. the equipment reliability is high. The connection and contact mode of equipment all adopt and connect and unload the mode, and the warning reliability is high, takes place certain displacement after touching the contact lever, through the transmission of power and make contact head and electrical ring contact to switched on the signal, consequently not influenced by high temperature environment, the reliability is high.

2. The service life is long. The device does not relate to basic electrical elements, and has long service life and good use effect.

3. The cost is low. The whole equipment is of a mechanical structure, is simple to process, and does not use high-temperature components and parts, so that the cost is low.

4. The alarm mode is various. After the contact head is contacted with the electric ring, the alarm mode can be realized by reading the electric ring signal or reading the signal of the PE wire of the whole equipment, and the application scenes and the editable modes are more.

Drawings

Fig. 1 is a schematic perspective view of a rotary station alarm device for high-temperature equipment according to the present invention.

Description of the drawings: the device comprises a movable bottom plate 1, a contact head 2, a bent contact end 21, a connecting end 22, a rotating shaft 23, a contact rod 3, a limiting column 4, a tension spring 5 and an electric ring 6.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined.

Example 1

In this implementation, the rotary motion of station is carried out for the clockwise to the processing equipment, and the processing temperature is six hundred degrees centigrade, and the alarm detection mode is for using PE line signal detection, and there are twelve processing stations.

Alarm device's movable bottom plate 1 is connected with equipment rotation power structure for the station is rotating, carries out flow during operation, can drive alarm device and rotate, and movable bottom plate 1's middle part has the structure with equipment rotation phase-match. There is electrical ring 6 on movable bottom plate 1's middle part, and the shape of electrical ring 6 is circular structure in this embodiment, and electrical ring 6 is electrified, nevertheless is insulating connection between with movable bottom plate 1, and electrical ring 6 is electrified under normal conditions but can not trigger PE line protection, can not influence equipment normal operating yet.

Twelve processing stations are needed, so that twelve contact heads 2 are needed, the contact heads 2 are made of copper materials with good conductivity, and are processed by clockwise rotation in the embodiment, so 12 contact heads 2 are evenly arranged around the electric ring 6, the bending direction of the bent contact end 21 in the contact head 2 is bent leftwards, a rotating shaft 23 is arranged in the middle of the contact head 2, and the contact head 2 is fixed on the movable base plate 1 through the rotating shaft 23. The contact head 2 is preferably mounted in a position such that the curved contact end 21 can touch the electrical ring 6 when the contact head 2 is rotated counterclockwise.

The contact head 2 is provided with a limit column 4 near the connecting end 22, the limit column 4 is installed on the right side of the connecting end 22, and a tension spring 5 is installed between the movable bottom plate 1 and the contact head 2, so that the tension spring 5 applies tension to the contact head 2 in the direction of the limit column 4.

On the connecting end 22 of the contact head 2, a connecting structure matched with the contact rod 3 is provided, and the contact rod 3 can be installed on the connecting end 22 of the contact head 2.

In addition, in the implementation, an electronic signal line is not additionally adopted, and the condition that the equipment alarms when the PE line of the equipment alarms is directly identified.

In operation, the movable base plate 1 rotates along with the rotation of the whole device, and the rotation of the movable base plate 1 drives the whole alarm device on the movable base plate 1 to rotate. The workpiece to be processed is placed at a position between the contact bars 3, and since the angle of rotation of the movable base plate 1 is the same as the angle of rotation of the entire apparatus and the timing of the rotation is synchronized at the time of normal rotation, the contact bars 3 do not come into contact with the workpiece. In the normal rotation process, extension spring 5 and spacing post 4's cooperation can eliminate the rotatory inertia at rotatory in-process contact lever 3, prevents to take place the emergence that the alarm was touched to the mistake.

When a workpiece is clamped on a certain position due to an accident, the whole device still rotates and drives the rotary table to rotate, but the workpiece does not move. At this time, the jammed workpiece will contact the contact rod 3, the normal rotation direction is clockwise, but because the position of the abnormal workpiece blocks the rotation direction, a counterclockwise rotation force is applied to the contact rod 3, and at this time, the contact rod 3 drives the contact head 2 to rotate counterclockwise, and during the counterclockwise rotation, the curved contact end 21 of the contact head 2 contacts the electrical ring 6, so that the contact head 2 is connected with the electrical ring 6 to form a circuit path. The contact 2 is a component in the whole equipment, and under the condition that the contact 2 is electrified, the whole equipment is electrified, so that the electric leakage phenomenon is generated. At the moment, current exists in a PE wire of the equipment, and the equipment can be forcibly closed under the condition that the equipment is electrified through a general preset program, so that the running safety of the equipment is protected.

Example 2

The difference from the embodiment 1 is that a microcomputer circuit is provided, a signal line is further provided on the point contact 2, and at the moment when the electric ring 6 is electrified and is conducted with the contact 2, a signal is sent out and transmitted to an external microcomputer, so that the device can perform alarm processing according to a preset program.

Example 3

The difference from embodiment 1 is that a return spring is further provided in the rotary shaft 23, and the tension spring 5 and the stopper post 4 are not provided. When the contact rod rotates, the inertia of the contact rod 3 can still be offset due to the elasticity of the return spring, and the whole structure is compact and not easy to damage.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A rotary station alarm device for high-temperature equipment is characterized by comprising a movable bottom plate (1), an electric ring (6), a contact head (2) and a contact rod (3), wherein the electric ring (6) is arranged in the middle of the movable bottom plate (1) and is in insulation connection with the movable bottom plate (1), the contact head (2) comprises a bent contact end (21) and a connecting end (22), the contact head (2) is arranged on the periphery of the electric ring (6) in a surrounding mode at one side of the bent contact end (21), and the contact rod (3) is connected with the connecting end (22) of the contact head (2);

the device is also provided with a component for eliminating the rotation inertia of the contact rods (3), a processed workpiece is placed between the contact rods (3), under the normal condition, the workpiece is not contacted with the contact rods (3), when the workpiece is clamped at a certain position accidentally, the clamped workpiece can apply a force to the contact rods (3) in the direction opposite to the rotation direction of the movable bottom plate (1), the contact rods (3) drive the bent contact ends (21) of the contact heads (2) to rotate in the opposite direction, and the bent contact ends (21) are contacted with the electric ring (6) to form a circuit path and send out an alarm.

2. A rotary station alarm device for high temperature equipment according to claim 1, characterized in that the contact head (2) is provided with a rotary shaft (23) in the middle, and the contact head (2) is fixed on the movable bottom plate (1) through the rotary shaft (23).

3. The rotary station alarm device for the high-temperature equipment as claimed in claim 2, wherein the part for eliminating the rotation inertia of the contact rod (3) further comprises a limiting column (4), and the limiting column (4) is arranged on the side, opposite to the bending direction of the bent contact end (21), of the contact head (2).

4. The rotary station alarm device for the high-temperature equipment is characterized in that the part for eliminating the rotation inertia of the contact rod (3) further comprises a tension spring (5), the tension spring (5) is arranged on the movable bottom plate (1) and is connected with the contact head (2), and the tension spring (5) can apply a tension force to the contact head (2) in the direction of the limit column (4).

5. A rotary station alarm device for high temperature equipment according to claim 2, characterized in that a return spring is provided in the rotary shaft (23) as a means for eliminating the inertia of the contact lever (3).

6. A rotary station alarm device for high temperature equipment according to claim 1, characterized in that the electrical ring (6) is fixed to the movable base plate (1) by means of insulating bolts.

7. A rotary station alarm device for high temperature equipment according to claims 1-6, wherein the contact head (2) is made of metal material.