Search

CN-121977764-A - Off-line airtight testing mechanism

CN121977764ACN 121977764 ACN121977764 ACN 121977764ACN-121977764-A

Abstract

The invention discloses an offline airtight testing mechanism, and belongs to the technical field of automatic testing equipment. The device comprises a frame and a test base fixed on the frame, wherein a material transfer module and a pressing driving module are arranged on the frame. The pushing-down driving module comprises a connecting rod, a telescopic rod arranged in the connecting rod, a first linear driver for driving the telescopic rod to move along the axial direction of the telescopic rod, a cam swing rod arranged above the connecting rod and a second linear driver for driving the cam swing rod to swing. The mechanism realizes automatic feeding, testing and discharging of products through the material transferring module, and realizes efficient reinforcement in a limited space through a connecting rod-cam swing rod composite driving structure, so that the problems of heavy structure, high energy consumption and complex operation of the traditional airtight testing equipment are solved, full-flow automatic testing is realized, and the testing efficiency and reliability are improved.

Inventors

  • CHEN WANGBIN
  • CHEN LUYANG
  • QIAN PENG
  • YANG SHUANGJUN
  • LIU CHENGFENG
  • KONG YAOJUN

Assignees

  • 杭州沃镭智能科技股份有限公司

Dates

Publication Date
20260505
Application Date
20260212

Claims (10)

  1. 1. The utility model provides an airtight test mechanism of off-line, includes frame (1) and is fixed in test base (2) on frame (1), its characterized in that, be provided with material transfer module (3) and push down drive module (5) on frame (1), push down drive module (5) include connecting rod (51), locate telescopic link (52) in connecting rod (51), be used for the drive telescopic link (52) along its axial motion's first linear drive (53), and set up in cam pendulum rod (55) of connecting rod (51) top, one end of cam pendulum rod (55) with connecting rod (51) are articulated, the other end of cam pendulum rod (55) is articulated with the output of second linear drive (54), the stiff end of second linear drive (54) with connecting rod (51) are articulated, second linear drive (54) are configured to be driven cam pendulum rod (55) for connecting rod (51) rotate, so as to drive connecting rod (51) and telescopic link (52) are swung down.
  2. 2. An off-line airtight testing mechanism according to claim 1, wherein the angle between the cam swing lever (55) and the axis of the second linear actuator (54) is 30 ° -90 °.
  3. 3. An off-line airtight testing mechanism according to claim 1, characterized in that the front end of the telescopic rod (52) is provided with a positioning protrusion configured to be able to cooperate with a clamping groove or recess on the side of the product (4) to be tested.
  4. 4. An off-line airtight testing mechanism according to claim 1, wherein said material handling module (3) comprises a handling mechanism (31) and clamping mechanisms (32) arranged on said handling mechanism (31), said clamping mechanisms (32) being of at least two groups configured to alternately perform the actions of gripping a product (4) to be tested and placing it on said test base (2).
  5. 5. An off-line airtight testing mechanism according to claim 4, wherein said handling mechanism (31) comprises a linear motion unit, a rotary driving unit connected to and driven by said linear motion unit, and a carrying table fixedly mounted at an output end of said rotary driving unit, said clamping mechanism (32) being mounted below said carrying table.
  6. 6. An off-line airtight testing mechanism according to claim 1, wherein an airtight testing flow passage communicating with an external leak detection device is provided in the testing base (2).
  7. 7. An off-line airtight testing mechanism according to claim 1, wherein the cam swing link (55) is structured such that when the second linear driver (54) drives it to swing, the distance from the hinge point of the cam swing link (55) and the link (51) to the geometric center line of the link (51) increases, thereby driving the link (51) and the telescopic link (52) to be depressed.
  8. 8. The off-line airtight testing mechanism according to claim 1, wherein the hinge position of the cam swing link (55) and the second linear driver (54) and the length of the cam swing link (55) are configured such that when the telescopic link (52) is pressed down to a sealing working position, an included angle between the cam swing link (55) and an axis of the second linear driver (54) is 70 ° -90 ° so as to increase a moment arm of an output force of the second linear driver (54) acting on the cam swing link (55).
  9. 9. An off-line airtight testing mechanism according to claim 1, wherein said push-down driving module (5) further comprises a control unit communicatively connected to said second linear driver (54), said control unit being configured to control said second linear driver (54) to perform a telescopic action to drive said cam swing lever (55) to swing, thereby driving said link (51) and telescopic lever (52) to swing downward.
  10. 10. The off-line airtight testing mechanism according to claim 1, wherein an included angle between a geometric center line of the connecting rod (51) and a horizontal plane is 0 ° -15 °, and when the connecting rod (51) and the telescopic rod (52) swing downward, the included angle between the geometric center line of the connecting rod (51) and the horizontal plane is reduced.

Description

Off-line airtight testing mechanism Technical Field The invention belongs to the technical field of automatic test equipment, and particularly relates to an off-line airtight test mechanism. Background Air tightness is one of the key indexes for measuring the quality and reliability of precision manufactured products. Traditional off-line airtight testing generally relies on manual operation, and a testing process generally comprises links of manual feeding, manual or semi-automatic clamping, airtight detection, manual discharging and the like. The method is low in efficiency and high in labor intensity, and human operation errors are easily introduced, so that the testing standard is not uniform, the result repeatability is poor, and the method is difficult to adapt to the production requirements of modernization, large scale and high beat. In order to improve the automation level of the test, various automatic airtight test equipment is currently available on the market, but the automatic airtight test equipment still has more limitations in realizing stable and efficient sealing and compaction. Most of the equipment adopts an air cylinder or a hydraulic cylinder as an executing element to directly push a pressure head to apply vertical pressing force to a product, and a driver with a large cylinder diameter or high pressure is often required to be selected to obtain enough sealing force, so that the whole structure of the equipment is heavy, the energy consumption is high, the occupied space is large, and the running noise is obvious. Some devices attempt to amplify the driving force by using a gear rack, a cam or a lever and other mechanisms, but these mechanisms often have complicated structures, more parts, high manufacturing cost, problems of transmission clearance, slow dynamic response, inconvenient maintenance and the like, and reliability is challenged under long-term high-frequency operation. In addition, automatic test equipment generally integrates material transportation and test compaction functions, and a traditional vertical downward pressing mode needs to occupy space right above a test station, so that the automatic test equipment is very easy to interfere with the movement of a material transportation mechanism which horizontally reciprocates or rotates in the vertical direction, and the compactness and the operation fluency of equipment layout are limited. Meanwhile, the existing equipment is often designed aiming at specific products, the compression stroke and the compression force are difficult to adjust, the testing requirements of products with different sizes and heights are difficult to adapt, and complicated mechanical adjustment or program resetting is needed when the products are changed. Therefore, on the premise of ensuring the test precision and reliability, an off-line airtight test mechanism which has compact structure, remarkable reinforcement effect, high-efficiency continuous automatic operation and effective space interference avoidance is designed, and the off-line airtight test mechanism becomes a technical problem to be solved in the field. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides an off-line airtight testing mechanism which has compact structure, remarkable reinforcement effect, high operation efficiency and capability of effectively avoiding space interference. The invention adopts the following technical scheme: The utility model provides an airtight testing mechanism of off-line, includes the frame and is fixed in test base in the frame, be provided with material transfer module and push down drive module in the frame, push down drive module includes the connecting rod, locates telescopic link in the connecting rod, be used for the drive the telescopic link along its axial motion's first linear drive, and set up in the cam pendulum rod of connecting rod top, one end of cam pendulum rod with the connecting rod articulates, the other end of cam pendulum rod articulates with the output of second linear drive, the stiff end of second linear drive with the connecting rod articulates, the second linear drive is configured to drive the cam pendulum rod for the connecting rod rotates, so as to drive the connecting rod with the telescopic link swings downwards. According to the off-line airtight testing mechanism, the automatic material transferring module and the high-efficiency boosting pushing driving module are integrated, so that full-flow automation of product off-line airtight testing is realized. The core of the device is that a connecting rod-cam swing rod composite driving mechanism with compact structure and obvious force amplification effect is adopted, stable and reliable sealing compaction is realized in a limited space, and the problems that the traditional testing equipment depends on manpower, has heavy structure and high energy consumption or has complex mechanism are solved. Specifically, the ma