CN-224217390-U - Semi-automatic frock of explosion chamber over-travel spring subassembly assembly

CN224217390UCN 224217390 UCN224217390 UCN 224217390UCN-224217390-U

Abstract

The utility model discloses a semiautomatic tooling for assembling an arc extinguish chamber over-travel spring assembly, which comprises a supporting frame, a driving mechanism arranged on the supporting frame, a sliding trolley for supporting a vacuum arc extinguish chamber and the over-travel spring assembly thereof, and a baffle plate, wherein the sliding trolley is slidably arranged on the supporting frame, the baffle plate is arranged in front of the sliding trolley and opposite to the over-travel spring assembly, and the driving mechanism drives the sliding trolley to drive the vacuum arc extinguish chamber and the over-travel spring assembly to move forwards, so that the vacuum arc extinguish chamber and the over-travel spring assembly are pressed by the baffle plate until the over-travel spring pre-pressing set travel stops automatically, and then the vacuum arc extinguish chamber and the over-travel spring assembly are positioned, so that the assembly is completed. According to the utility model, by controlling the driving mechanism, the force can be applied in a point-action manner, the force can be removed in a point-action manner, the multi-limit design is combined with the horizontal layout, the over-travel spring assembly can be adjusted to an ideal assembly state under the condition of no external force unloading, two hands are liberated, one person can lightly loosen one machine, the assembly can be completed efficiently and accurately, and the device is safe and convenient.

Inventors

LI ZHANGYUN
XU JIE
YAO LIN
HE YUMIN
HUANG YUANZHAN
ZHENG YILONG
WEI YANXIA
WANG LINQUAN

Assignees

广州白云电器设备股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250527

Claims (10)

1. The semi-automatic tool for assembling the over-travel spring assembly of the arc extinguish chamber is characterized by comprising a supporting frame, a driving mechanism arranged on the supporting frame, a sliding trolley for supporting the vacuum arc extinguish chamber and the over-travel spring assembly of the vacuum arc extinguish chamber, and a baffle plate, wherein the sliding trolley is slidably arranged on the supporting frame, the baffle plate is arranged in front of the sliding trolley and opposite to the over-travel spring assembly, and the driving mechanism drives the sliding trolley to drive the vacuum arc extinguish chamber and the over-travel spring assembly to move forwards, so that the vacuum arc extinguish chamber and the over-travel spring assembly are pressed by the baffle plate until the over-travel spring pre-pressing set stroke automatically stops, and then positioning is carried out, so that the assembly is completed.
2. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 1, wherein the driving mechanism adopts an air cylinder, the supporting frame comprises a frame bottom plate, a mounting plate arranged at the rear end of the frame bottom plate and a baffle arranged at the front end of the frame bottom plate, a cylinder body of the air cylinder is fixed on the mounting plate, and the front end of a shaft rod of the air cylinder penetrates through the mounting plate to be connected with the sliding trolley.
3. The semiautomatic tooling for assembling the over-travel spring assembly of the arc extinguishing chamber according to claim 2, wherein a pair of sliding rails extending along the front-rear direction are arranged on two sides of the upper plate surface of the frame bottom plate, the sliding trolley comprises a trolley bottom plate, a trolley transition plate arranged at the rear end of the trolley bottom plate, and a supporting plate for supporting the vacuum arc extinguishing chamber and the over-travel spring assembly thereof, two sides of the trolley bottom plate are in sliding fit with the sliding rails, and the front end of a shaft lever of the air cylinder is fixed on the trolley transition plate.
4. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 3, wherein a pair of horizontal bar-shaped guide rails are arranged on two sides of the trolley transition plate, a pair of corresponding guide holes are formed in the mounting plate, self-lubricating guide rings are arranged in the guide holes, and the bar-shaped guide rails penetrate through the self-lubricating guide rings to be in sliding fit with the self-lubricating guide rings so as to guide the movement of the sliding trolley.
5. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 4, wherein the rod-shaped guide rail and the shaft rod of the air cylinder are positioned on the same height plane.
6. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 5, wherein the supporting plate of the sliding trolley consists of a trolley supporting plate arranged in the middle of a trolley bottom plate and a limiting plate arranged at the front end of the trolley bottom plate and used for preventing the arc extinguishing chamber moving conducting rod from being twisted and blocked, the upper end of the trolley supporting plate is provided with a U-shaped groove which is suitable for the outer wall of the vacuum arc extinguishing chamber, and the upper end of the limiting plate is provided with a U-shaped groove which is suitable for a flat opening on the vacuum arc extinguishing chamber moving conducting rod.
7. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 6, wherein fixing holes for fixing the frame bottom plate with the operation table through bolts are reserved around the frame bottom plate.
8. The assembly semi-automatic tooling for the over-travel spring of the arc extinguishing chamber according to claim 7, wherein reinforcing studs are arranged on one side plate surfaces of the mounting plate, the baffle plate and the trolley transition plate.
9. The assembly semi-automatic tooling for the over-travel spring assembly of the arc extinguishing chamber of claim 8, wherein the sliding trolley is adjustable in stroke pushed and pulled by a cylinder shaft rod for assembling the over-travel spring assembly with different pre-pressing strokes.
10. The assembly semiautomatic tooling for the over-travel spring assemblies of the arc extinguishing chamber according to claim 9, wherein the assembly of the same batch of over-travel spring assemblies is realized through push-pull operation of a one-key control cylinder shaft lever, namely, one-key control is used for automatically pressing in place and one-key control is used for automatically removing pressure.

Description

Semi-automatic frock of explosion chamber over-travel spring subassembly assembly Technical Field The utility model belongs to the technical field of vacuum circuit breakers, and particularly relates to a semi-automatic tool for assembling an arc extinguish chamber over-travel spring assembly. Background The quality of the vacuum circuit breaker, which is used as a main arc extinguishing element of the switching equipment and the control equipment, directly determines the quality of the whole product. In order to ensure high quality and reliability of supplied products and avoid post-maintenance and after-sale disputes, national grid companies propose to all winning suppliers that complete equipment suppliers have the capability of autonomously producing circuit breakers. The vacuum arc-extinguishing chamber is favored by the design of a breaker switch by virtue of good arc-extinguishing performance in a vacuum environment. In order to reduce contact resistance and ensure pressure when the movable contact and the fixed contact of the vacuum arc-extinguishing chamber are contacted, the design of an over-travel spring component of the movable conductive end of the vacuum arc-extinguishing chamber is an indispensable ring, and the requirements on assembly precision, assembly quality, assembly operability and safety are extremely high. The existing assembly implementation scheme of the over-travel spring assembly of the vacuum arc-extinguishing chamber basically vertically fixes the vacuum arc-extinguishing chamber and the over-travel spring assembly on an assembly tool according to a specific installation sequence, and the over-travel spring is pre-pressed for a certain stroke by adopting auxiliary pressure equipment such as a manual tool or a spring press (about 1600-2000N) to lock the over-travel spring in an over-travel spring seat, and a limit pin is inserted to complete the primary assembly. However, the whole assembly process has the following defects: ⑴ The manual frock or rely on auxiliary pressure equipment such as spring press to install, waste time and energy, need many people to cooperate to accomplish. ⑵ The prepressing process needs to continuously adjust the prepressing stroke and the matching angle to the ideal assembly state for locking, and the installation efficiency is low. ⑶ The vertical installation is not limited, all combined elements are easy to scatter, the installation precision is difficult to guarantee, and the pre-pressing stress is difficult to adjust. ⑷ The pre-pressed over-travel spring is easy to jump out, and hurt the personnel and equipment. Disclosure of utility model The utility model aims to provide a semi-automatic assembly tool for an arc extinguish chamber overtravel spring assembly, which saves labor, improves the installation efficiency, improves the installation precision and is safe and convenient to operate. The technical scheme is that the semi-automatic tool for assembling the over-travel spring assembly of the arc extinguish chamber is characterized by comprising a supporting frame, a driving mechanism arranged on the supporting frame, a sliding trolley for supporting the vacuum arc extinguish chamber and the over-travel spring assembly of the vacuum arc extinguish chamber and a baffle plate, wherein the sliding trolley can be slidably arranged on the supporting frame, the baffle plate is arranged in front of the sliding trolley and opposite to the over-travel spring assembly, and the driving mechanism drives the sliding trolley to drive the vacuum arc extinguish chamber and the over-travel spring assembly to move forwards, so that the vacuum arc extinguish chamber and the over-travel spring assembly are pushed by the baffle plate until the pre-pressing set stroke of the over-travel spring is automatically stopped, and then the vacuum arc extinguish chamber and the over-travel spring assembly are positioned, so that the semi-automatic tool is assembled. According to the utility model, by controlling the driving mechanism, the force can be applied in a point-action manner, the force can be removed in a point-action manner, the multi-limit design is combined with the horizontal layout, the over-travel spring assembly can be adjusted to an ideal assembly state under the condition of no external force unloading, two hands are liberated, one person can lightly loosen one machine, the assembly can be completed efficiently and accurately, and the device is safe and convenient. The driving mechanism adopts an air cylinder, the supporting frame comprises a frame bottom plate, a mounting plate arranged at the rear end of the frame bottom plate and a baffle plate arranged at the front end of the frame bottom plate, a cylinder body of the air cylinder is fixed on the mounting plate, and the front end of a shaft rod of the air cylinder penetrates through the mounting plate to be connected with the sliding trolley. The utility model provides a pair of sliding rails extending