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CN-224216727-U - Mold clamping device and test equipment

CN224216727UCN 224216727 UCN224216727 UCN 224216727UCN-224216727-U

Abstract

The application relates to the field of testing, in particular to a mold clamping device and test equipment, wherein the mold clamping device is used for clamping a controlled-movement openable and closable test seat, the openable and closable test seat comprises a base and a flip, the base is rotationally connected with the flip, the mold clamping device comprises a cam plate, the cam plate is provided with a mold clamping cam surface, the mold clamping cam surface faces the openable and closable test seat, the mold clamping cam surface extends along the direction of a mold clamping track of the openable and closable test seat, the mold clamping cam surface is provided with a mold clamping initial position and a mold clamping end position, the base and the flip of the openable and closable test seat are in an open state in the mold clamping initial position, the base and the flip of the openable and closable test seat are in a preset buckling state in the mold clamping end position, and the flip of the openable and closable test seat is always in abutting joint with the mold clamping cam surface in the movement process of the openable and closable test seat along the mold clamping track, and then the flip can rotate relative to the base under the action of the mold clamping cam surface until the flip is in abutting joint with the mold clamping end position.

Inventors

  • HUO XIAOKANG

Assignees

  • 苏州联讯仪器股份有限公司

Dates

Publication Date
20260508
Application Date
20250331

Claims (10)

  1. 1. The mold clamping device is used for clamping a controlled-movement openable and closable test seat, and comprises a base and a flip cover which are rotatably connected, and is characterized by comprising a cam plate, wherein the cam plate is provided with a mold clamping cam surface, the mold clamping cam surface faces the openable and closable test seat, the mold clamping cam surface extends along the direction of a mold clamping track of the openable and closable test seat, and the mold clamping cam surface is provided with a mold clamping initial position and a mold clamping end position; in the initial die closing position, the base of the openable and closable test seat and the flip cover are in an open state; In the mold closing termination position, the base of the openable and closable test seat and the flip cover are in a preset buckling state; And in the process that the openable and closable test seat moves along the die closing track, the flip cover of the openable and closable test seat is always abutted against the die closing cam surface, so that under the action of the die closing cam surface, the flip cover can rotate relative to the base until the flip cover is abutted against the die closing termination position.
  2. 2. The mold clamping device as recited in claim 1, further comprising a hold-down mechanism disposed adjacent to the mold clamping end position, the hold-down mechanism comprising a hold-down assembly and a drive assembly, the drive assembly being capable of driving the hold-down assembly against the flip cover when the test seat is in the mold clamping end position to bring the flip cover and the base into a fully engaged condition.
  3. 3. The mold clamping apparatus of claim 2, wherein the hold-down assembly is switchable between a first position and a second position by the drive assembly; when the pressing component is positioned at the first position, the lowest point of the pressing component and the closing end position are positioned on the same horizontal line.
  4. 4. The mold clamping apparatus of claim 3, wherein when the hold-down assembly is moved from the first position to the second position, the hold-down assembly urges the base to rotate to form a gap between the flip cover and the mold clamping cam surface to thereby bring the base and the flip cover into a completed snap-fit condition.
  5. 5. The mold clamping apparatus of claim 2, wherein the hold down assembly has a hold down head for abutting the openable and closable test seat, the hold down head being made of a rigid material.
  6. 6. The mold clamping apparatus of claim 2 or 5, wherein the drive assembly includes a linear motor for providing a driving force capable of moving the hold-down assembly in a height direction.
  7. 7. The mold clamping apparatus of claim 2, further comprising a first detection assembly disposed proximate the mold clamping end position, the first detection assembly sensing the position information of the flip cover.
  8. 8. The mold clamping apparatus of claim 2 or 7, further comprising a second sensing assembly located on one side of the cam plate, the second sensing assembly sensing the position information of the flip cover after the retractable test seat is separated from the mold clamping cam surface.
  9. 9. The mold clamping apparatus according to claim 1, wherein the cam plate has a fitting surface extending in a horizontal direction, the fitting surface being disposed opposite to the mold clamping cam surface; the clamping device further comprises a cam plate bracket, and the assembling surface is fixed on the cam plate bracket.
  10. 10. A test apparatus comprising a conveyor, a test seat, a test device and a clamping device as claimed in any one of claims 1 to 9, wherein the openable and closable test seat is arranged to move controllably along the conveyor, the test device being arranged on one side of the conveyor.

Description

Mold clamping device and test equipment Technical Field The application relates to the field of testing, in particular to a die clamping device and testing equipment. Background In the field of testing of semiconductor or electronic components, the semiconductor or electronic component is placed in a retractable test seat. In the prior art, when a testing device tests a semiconductor or an electronic component, the foldable testing seat is firstly converted into a buckling state from an opening state through a die clamping mechanism, so that the semiconductor or the electronic component can be conveniently tested when a subsequent testing device is electrically connected with the foldable testing seat. In the prior art, a mould closing mechanism generally adopts a disc inverted arc angle design, and the working principle of the mould closing mechanism is that the upper cover plate of the openable test seat is pushed to be pressed downwards by disc arc angles with different front and back radiuses, and finally, a Z axis is driven by a cylinder to complete mould closing action. However, the clamping mechanism in the prior art has the following problems: The mechanical characteristic defect is that when the circular arc angle of the disc is contacted with the upper cover plate of the foldable test seat, the pressure angle can generate abrupt change in the rotation process, so that the stress state of the foldable test seat generates instant dynamic abrupt change, and the abrupt change not only aggravates the abrasion of the contact part of the foldable test seat and the disc, but also can cause the displacement of the element to be tested in the foldable test seat, thereby directly causing the test failure. Meanwhile, the abrupt load is transmitted to the rack and pinion conveying mechanism below the test seat through the openable and closable test seat, the high-frequency vibration mode of the test seat is excited, and the long-term accumulation leads to the attenuation of the positioning precision of the rack and pinion conveying mechanism. The system has the complexity that the traditional mechanism needs to integrate the disc rotating mechanism and the cylinder driving system, so that the whole structure is complex, the maintenance cost is high, and the fault probability of the system is increased due to multi-link cooperative control. Disclosure of utility model The utility model aims to provide a die clamping device which can avoid transient dynamic mutation of a stress state of an openable test seat, is beneficial to reducing the assembly complexity of a system and simplifies the control logic of the system. The utility model provides a mold clamping device for realizing mold clamping of a controlled-movement openable and closable test seat, wherein the openable and closable test seat comprises a base and a flip cover which are rotationally connected, the mold clamping device comprises a cam plate, a cam plate and a clamping device, the cam plate is provided with a mold clamping cam surface, the mold clamping cam surface faces the openable and closable test seat, the mold clamping cam surface extends along the direction of a mold clamping track of the openable and closable test seat, and the mold clamping cam surface is provided with a mold clamping initial position and a mold clamping end position; in the initial die closing position, the base of the openable and closable test seat and the flip cover are in an open state; In the mold closing termination position, the base of the openable and closable test seat and the flip cover are in a preset buckling state; And in the process that the openable and closable test seat moves along the die closing track, the flip cover of the openable and closable test seat is always abutted against the die closing cam surface, so that under the action of the die closing cam surface, the flip cover can rotate relative to the base until the flip cover is abutted against the die closing termination position. The mold clamping device further comprises a pressing mechanism, the pressing mechanism is arranged close to the mold clamping ending position and comprises a pressing component and a driving component, and when the openable and closable test seat is positioned at the mold clamping ending position, the driving component can drive the pressing component to prop against the flip cover so that the flip cover and the base are in a complete buckling state. Further, the pressing component can be switched between a first position and a second position by the driving component; when the pressing component is positioned at the first position, the lowest point of the pressing component and the closing end position are positioned on the same horizontal line. Further, when the pressing component is switched from the first position to the second position, the pressing component pushes the base to rotate, so that a gap is formed between the flip cover and the die closing cam surfac