CN116953470A

CN116953470A - Control system

Info

Publication number: CN116953470A
Application number: CN202210398777.2A
Authority: CN
Inventors: 黄琰
Original assignee: Changxin Memory Technologies Inc
Current assignee: Changxin Memory Technologies Inc
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2023-10-27

Abstract

The disclosed embodiments provide a control system including: a fixing device for fixing the object to be tested; a heating assembly for heating the subject to be tested; a temperature detection component for detecting a temperature value of the object to be tested; the control assembly is used for receiving the temperature value detected by the temperature detection assembly in real time, controlling the heating temperature of the heating assembly based on the temperature value so that the object to be tested has a preset temperature, and controlling the pressure value applied by the fixing device to the object to be tested based on the temperature value so that the object to be tested bears the preset pressure value under any temperature condition. The control system provided by the embodiment of the disclosure has good controllability, high temperature control precision and convenience and rapidness; meanwhile, the object to be tested can be heated after being fixed by the fixing device, so that the fixing and heating integrated design of the object to be tested can be realized.

Description

Control system

Technical Field

The disclosure relates to the technical field of chip testing, and in particular relates to a control system.

Background

The production process of the chip is very complex, and the quality of wafer particles is uneven due to the limitation of complex process and equipment performance, so that the chip needs to be tested in the subsequent packaging test flow, and the quality of the chip is ensured.

The chip packaging test process comprises automatic optical detection, wafer particle detection and wafer classification combination, wherein the wafer particle detection adopts proprietary equipment to carry out electronic performance test on the wafer particles, and the quality of the wafer particles is judged according to the test result. The high-temperature test is an important step of electronic performance test, and is to simulate the operation and storage adaptability of the chip in a climatic environment, observe the stability of wafer particles and ensure that the chip can work normally in an extremely high-temperature environment.

At present, other components of a system platform are easy to damage during high-temperature testing of a chip.

Disclosure of Invention

In view of the foregoing, an embodiment of the present disclosure provides a control system, including a fixing device for fixing a subject to be tested; a heating assembly for heating the subject to be tested; a temperature detection component for detecting a temperature value of the object to be tested; the control assembly is used for receiving the temperature value detected by the temperature detection assembly in real time, controlling the heating temperature of the heating assembly based on the temperature value so that the object to be tested has a preset temperature, and controlling the pressure value applied by the fixing device to the object to be tested based on the temperature value so that the object to be tested bears the preset pressure value under any temperature condition.

In some embodiments, the temperature detection assembly and the heating assembly are located on opposite sides of the subject to be tested. Therefore, the heating component can directly heat the object to be tested, and the system platform and the object to be tested do not need to be put into the test box together for high-temperature test of the object to be tested. That is, the system platform does not need to be heated, so that the damage problem to other components and circuit boards on the system platform in the heating process is reduced; in addition, the temperature detection component can directly detect the temperature of the object to be tested, so that the temperature of the object to be tested can be accurately acquired in real time.

In some embodiments, the system further comprises: the pressure detection assembly is used for detecting a pressure value applied to the object to be tested by the fixing device, and the control assembly is also used for adjusting the fixing device based on the temperature value and the pressure value so that the object to be tested can bear a preset pressure value under any temperature condition. Therefore, the pressure value applied to the object to be tested can be detected, the fixing device is adjusted based on the detected pressure value and the detected temperature value, and the object to be tested is accurately controlled to bear the preset pressure value under any temperature condition, so that the problem that the object to be tested is damaged due to overlarge pressure can be reduced, and the problem that the object to be tested cannot be fixed due to overlarge pressure can be also reduced.

In some embodiments, the pressure detection assembly is located between the subject to be tested and the press block of the fixture, or the subject to be tested is located between the pressure detection assembly and the press block of the fixture. In this way, the pressure detection assembly can directly and accurately detect the pressure exerted by the fixing device on the object to be tested.

In some embodiments, the securing means comprises: the support assembly comprises a first connecting beam which is transversely arranged; the transmission assembly comprises a transmission screw and a pressing block in threaded connection with the transmission screw, the first connecting beam is used for supporting the transmission screw, and the transmission screw is used for driving the pressing block to move up and down along the vertical direction; and the limiting assembly is used for limiting the up-and-down movement of the transmission screw and limiting the rotation movement of the pressing block. Thus, the fixing device in the control system has the following advantages: 1. the pressing block can be moved up and down by rotating the transmission screw rod, so that the driving mode is simpler in the technical scheme, and the punching and fixing on the system platform are not needed, thereby reducing the damage to the system platform; 2. because the limiting component limits the up-and-down motion of the driving screw and the rotation motion of the pressing block, a thread self-locking function is provided between the driving screw and the pressing block in threaded connection, and compared with a spring compression fixing device, the fixing device in the embodiment of the disclosure can not change the pressure of the object to be tested after fixing the object to be tested; 3. the fixing device only comprises a supporting component, a transmission component and a limiting component, and therefore the fixing device in the technical scheme is simple in structure, the pressing block is enabled to move up and down along the vertical direction by rotating the transmission screw rod, and motion transmission is achieved in a mode of converting rotary motion into linear motion, and the operation is convenient; 4. the component structure contained in the fixing device is easy to process, convenient to assemble and easy to operate, has low cost and can be produced in mass.

In some embodiments, the spacing assembly comprises: the first limiting assembly comprises a first limiting unit and a second limiting unit, the first limiting unit is used for limiting the downward movement of the transmission screw, and the second limiting unit is used for limiting the upward movement of the transmission screw; and the second limiting assembly is used for limiting the rotary motion of the pressing block.

In some embodiments, the first limiting unit includes: and the first limiting part is fixedly connected with the transmission screw, and the lower surface of the first limiting part is contacted with the upper surface of the first connecting beam and used for limiting the downward movement of the transmission screw.

In some embodiments, the first limiting part and the driving screw are in an integrated structure, so that the composition structure of the fixing device can be simplified, and the processing and the assembly are convenient.

In some embodiments, the drive screw includes a threaded drive rod, and the first limit portion further acts as a rotating handle for driving the threaded drive rod; the threaded transmission rod is in threaded connection with the pressing block. Therefore, the screw drive rod can be conveniently gripped and applied with force during rotation, and the screw drive rod can be matched with the first connecting beam to limit the downward movement of the transmission screw.

In some embodiments, the drive screw further comprises a connecting rod, the connecting rod is used for connecting the rotating handle and the threaded drive rod, and the second limiting unit is fixedly connected with the connecting rod. Thus, when the rotary handle is rotated to drive the drive screw, the second limiting unit can limit the drive screw to move upwards; in addition, the second limiting unit is arranged on the connecting rod, so that the work of the threaded transmission rod is not affected.

In some embodiments, the drive screw further includes a hole therein, and the second limiting unit includes: and the second limiting part is partially arranged in the hole, and the upper surface of the second limiting part is contacted with the lower surface of the first connecting beam and is used for limiting the upward movement of the transmission screw. Because the upper surface of the second limiting part is in contact with the lower surface of the first connecting beam, when the driving screw is rotated, the upward movement of the driving screw can be limited, a precondition is provided for realizing the thread self-locking function, and then when an acting force is applied to the pressing block by a to-be-tested object, the pressing block applies the same force to the to-be-tested object.

In some embodiments, the second spacing assembly comprises: the second connecting beam is arranged below the first connecting beam and fixedly connected with the supporting component, the second connecting beam is provided with a through hole matched with the pressing block, and the through hole is used for accommodating the pressing block and limiting the rotating movement of the pressing block. Therefore, by accommodating part of the transmission screw and the pressing block in the through hole, when the transmission screw is rotated, the rotation motion can be converted into linear motion, the pressing block is driven to move downwards along the vertical direction, and the thread self-locking function is realized.

In some embodiments, the press block includes a pressing portion and a connecting portion having threads that mate with the drive screw. Thus, the shape of the connection portion or the shape of the partial pressing portion is set according to the shape of the via hole, and the pressing surface shape of the pressing portion is set according to the shape of the object to be tested. It can be understood that the same pressing portion can fix a plurality of objects to be tested at different positions at the same time, that is, one pressing portion can have a plurality of pressing surfaces, and the number of the pressing surfaces can be set according to the number of the objects to be tested.

In some embodiments, the drive screw has an external thread, the connecting portion has an internal thread, the external thread is in mating connection with the internal thread, and the rotational movement of the drive screw is used to drive the connecting portion to move up and down in a vertical direction. Therefore, through the mutually matched external threads and internal threads respectively arranged on the transmission screw and the connecting part, the fixing of an object to be tested can be realized in a simple thread driving mode, and the problem that the system platform is damaged due to the fact that the socket type fixing device punches on the system platform is solved; meanwhile, the self-locking function of the thread is achieved, so that the problem of compression force change of the spring compression type fixing device caused by spring fatigue can be solved.

In some embodiments, the support assembly further comprises: the vertical setting in first tie-beam with two supports at second tie-beam both ends, first tie-beam with the second tie-beam all can for the support reciprocates. Therefore, when the distance between the pressing block and the object to be tested is far, the object to be tested can be fixed through the transmission assembly by downwards moving the first connecting beam and the second connecting beam, so that the fixing time is shortened; in addition, can also fix the object to be tested who is away from briquetting not co-altitude to satisfy different demands.

In the embodiment of the disclosure, the heating component in the control system heats the object to be tested, and the control component automatically adjusts and controls the temperature of the heating component through the temperature value detected by the temperature detection component, so that the object to be tested has the preset temperature, and the control system has good controllability, high temperature control precision and convenience and rapidness; meanwhile, the fixing device is adopted to fix the object to be tested, and then the object to be tested can be heated, so that the fixing and heating integrated design of the object to be tested can be realized; in addition, the pressure value exerted by the fixing device on the object to be tested can be controlled based on different preset temperature values, so that the object to be tested is under the same pressure condition in the heating test of different preset temperatures.

Drawings

In the drawings (which are not necessarily drawn to scale), like numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different instances of similar components. The drawings illustrate generally, by way of example and not by way of limitation, various embodiments discussed herein.

Fig. 1a is a schematic diagram of a composition structure of a control system according to an embodiment of the disclosure;

fig. 1b to 1d are schematic diagrams illustrating the positional relationship among a heating component, an object to be tested and a temperature detection component in a control system according to an embodiment of the present disclosure;

FIG. 2a is a schematic diagram of the composition and structure of another control system according to an embodiment of the present disclosure;

FIGS. 2b and 2c are schematic diagrams illustrating the positional relationship among a fixture, an object to be tested, and a pressure detection assembly in another control system according to an embodiment of the present disclosure;

fig. 3a is a schematic structural diagram of a fixing device according to an embodiment of the disclosure;

FIG. 3b is a schematic view of a structure of another fixing device according to an embodiment of the disclosure;

FIG. 3c is a schematic diagram of a driving screw according to an embodiment of the present disclosure;

FIG. 3d is a schematic view of the structure of another drive screw according to an embodiment of the present disclosure;

FIG. 3e is a schematic diagram of the structure of another drive screw according to an embodiment of the present disclosure;

FIG. 3f is a schematic view of a second connecting beam according to an embodiment of the present disclosure;

fig. 3g is a schematic diagram of a composition structure of a briquette according to an embodiment of the disclosure;

FIG. 3h is a schematic diagram of the composition of another briquette according to an embodiment of the disclosure;

fig. 4 is a schematic implementation flow chart of a control method according to an embodiment of the disclosure;

fig. 5 is a schematic diagram of a composition structure of a control device according to an embodiment of the disclosure.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present disclosure. However, it will be apparent to one skilled in the art that the present disclosure may be practiced without one or more of these details. In other instances, well-known features have not been described in order to avoid obscuring the present disclosure; that is, not all features of an actual implementation are described in detail herein, and well-known functions and constructions are not described in detail.

In the drawings, the size of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like numbers refer to like elements throughout.

It will be understood that when an element or layer is referred to as being "on" … …, "" adjacent to "… …," "connected to" or "coupled to" another element or layer, it can be directly on, adjacent to, connected to or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on" … …, "" directly adjacent to "… …," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present disclosure. When a second element, component, region, layer or section is discussed, it does not necessarily mean that the first element, component, region, layer or section is present in the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.

Embodiments of the present disclosure provide a control system, referring to fig. 1a, comprising:

a fixture 10 for fixing an object 20 to be tested;

a heating assembly 30 for heating the subject 20 to be tested;

a temperature detection component 40 for detecting a temperature value of the subject 20 to be tested;

the control component 50 is configured to receive the temperature value detected by the temperature detecting component 40 in real time, and control the heating temperature of the heating component 30 based on the temperature value, so that the object 20 to be tested has a preset temperature, and control the pressure value applied by the fixing device 10 to the object 20 to be tested based on the temperature value, so that the object 20 to be tested is subjected to the preset pressure value under any temperature condition.

Here, the fixing device fixes the object to be tested on the system platform or the test platform so as to test the object to be tested. Referring to fig. 1a, the fixture 10 has a press block 70, and the press block 70 is used to directly or indirectly contact with the object 20 to be tested to fix the object 20 to be tested. After the fixture holds the object 20 to be tested, the press block of the fixture 10 may be abutted against the temperature detecting assembly 40 or the heating assembly 30. The object to be tested may be a chip to be tested, or may be another object such as a semiconductor device that needs to be subjected to a temperature test, which is not limited in the embodiment of the present disclosure. It should be noted that, in the embodiment of the present disclosure, a chip to be tested is taken as an example for illustration.

In some embodiments, the fixing device is used to fix the object to be tested on the system platform, and the heating component is used to make the object to be tested have a preset temperature, so that the high-temperature test of the object to be tested can be completed. When the to-be-tested object is the to-be-tested chip, the adaptability of the to-be-tested chip to operation and storage under different climatic environments can be simulated, the stability of wafer particles is observed, and the to-be-tested chip can work normally under an extremely high-temperature environment.

In some embodiments, the number of fixtures may be determined based on the number of subjects to be tested, e.g., the number of subjects to be tested is 2, and the number of fixtures may be 2.

Since the control component is to control the fixing device, the heating component and the temperature detection component, the control component needs to be electrically connected with the fixing device, the heating component and the temperature detection component. The control component can receive the temperature value detected by the temperature detection component in real time, and control the heating temperature of the heating component based on the real-time temperature value. When the real-time temperature value is larger than the preset temperature, the control component controls the heating component to stop heating the object to be tested; when the real-time temperature value is smaller than the preset temperature, the control component controls the heating component to heat the object to be tested, so that the object to be tested has the preset temperature. Here, the preset temperature may be selected by the control component according to the attribute of the object to be tested, or may be input by a user through the device. In addition, when the real-time temperature is higher than the preset temperature, the control system can be used for actively cooling the object to be tested, and the object to be tested can be used for passively waiting for cooling.

Since the object to be tested swells at high temperatures, i.e. the structural volume of the solid material increases as the temperature of the solid material increases, the object to be tested exerts a higher level of force on the fixture. Therefore, under different temperature values, the pressure applied by the fixing device to the object to be tested is different, at this time, the control component is required to control the pressure value applied by the fixing device to the object to be tested according to the temperature value, so that the pressure born by the object to be tested is the same at any temperature, and on the other hand, the problem that the object to be tested is damaged due to too high acting force can be avoided.

In some embodiments, the heating component may be a heat patch or a heat film, etc., which may be in direct contact with the subject to be tested for heating the subject to be tested. The mode that the heating film directly heats the object to be tested is adopted, the structure is simple, the precision is high, the efficiency is high, the cost is low, and the device can be reused. In practice, the heating sheet may be a ceramic heating sheet or other material with good heat conduction effect such as polyimide. The temperature detection component can be in contact or non-contact; the non-contact type can comprise an infrared temperature sensor, and the contact type can comprise a thermocouple thermometer.

In the embodiment of the disclosure, the heating component in the control system heats the object to be tested, and the temperature of the heating component is automatically adjusted and controlled through the temperature value detected by the temperature detection component by the control component, so that the object to be tested has a preset temperature. Therefore, the control system has good controllability, high temperature control precision and convenience and rapidness; meanwhile, the fixing device is adopted to fix the object to be tested, and then the object to be tested can be heated, so that the fixing and heating integrated design of the object to be tested can be realized; in addition, the pressure value exerted by the fixing device on the object to be tested can be controlled based on different preset temperature values, so that the object to be tested is under the same pressure condition in the heating test of different preset temperatures.

In practice, the positions of the heating element, the temperature detection element and the object to be tested can be set relatively flexibly. In some embodiments, the temperature detection assembly and the heating assembly are located on opposite sides of the subject to be tested. At this time, the positions of the temperature detecting member, the heating member, and the object to be tested may include the following two cases, case 1: referring to fig. 1b, a heating assembly 30, a subject to be tested 20, and a temperature detection assembly 40 are sequentially arranged from bottom to top; in other words, the temperature sensing assembly 40 is in contact with the press block of the fixture; case 2: referring to fig. 1c, a temperature detecting assembly 40, a subject to be tested 20, and a heating assembly 30 are sequentially arranged from bottom to top; in other words, the heating assembly 30 is in contact with the press block of the fixture.

In other embodiments, referring to FIG. 1d, the temperature sensing assembly 40 and the subject 20 to be tested may be located on opposite sides of the heating assembly 30.

As can be seen from fig. 1b, 1c and 1 d: first, since the heating assembly 30 is in direct contact with the object 20 to be tested, the heating assembly 30 can directly heat the object 20 to be tested, so that the system platform and the object to be tested do not need to be put into a test box together for high-temperature testing of the object to be tested. That is, the system platform does not need to be heated, so that damage to other components and circuit boards on the system platform caused by heating is reduced. Secondly, good thermal conductivity can be achieved since the heating element is in direct contact with the object to be tested.

Furthermore, as can be seen from fig. 1b and 1c, since the temperature detecting assembly is also in direct contact with the object to be tested, the temperature detecting assembly can reach a thermal equilibrium by conduction or convection, so that the indication value of the temperature detecting assembly can directly represent the temperature of the object to be tested.

In some embodiments, referring to fig. 2a, the control system further comprises:

a pressure detection assembly 60 electrically connected to the control assembly 50 for detecting the amount of pressure exerted by the fixture 10 on the subject 20 to be tested.

The control assembly 50 is further configured to adjust the fixture 10 based on the temperature value and the detected pressure value of the pressure detection assembly 60, so that the object 20 to be tested is subjected to a preset pressure value under any temperature condition.

In practice, the position of the pressure detection assembly can be set relatively flexibly, with the pressure detection assembly 60 being located between the object to be tested 20 and the press block 70 of the fixture 10, or with the object to be tested 20 being located between the pressure detection assembly 60 and the press block 70 of the fixture 10. For example, referring to fig. 2b, the pressure sensing assembly 60 may be located between the press block 70 of the fixture 10 and the temperature sensing assembly 40. The control assembly may obtain the value of the pressure exerted by the fixture 10 on the subject 20 to be tested from the pressure detection assembly 60. For another example, referring to fig. 2c, the object 20 to be tested may also be located between the pressure detecting assembly 60 and the press block 70 of the fixture, specifically, the press block 70 of the fixture, the temperature detecting assembly 40, the object 20 to be tested, the heating assembly 30, and the pressure detecting assembly 60 in this order from top to bottom.

Therefore, the pressure value applied to the object to be tested can be detected, and the object to be tested is accurately controlled to bear the preset pressure value under any temperature condition, so that the problem that the object to be tested is damaged due to overlarge pressure can be reduced, and the problem that the object to be tested cannot be fixed due to overlarge pressure can be also reduced.

In some embodiments, referring to fig. 3a, the fixture 10 comprises: the support assembly 11 includes a first connection beam 111 disposed transversely, two brackets 112 and 113 disposed vertically at both ends of the first connection beam 111, and the first connection beam 111 may be fixed to the brackets 112 and 113 by bolts 114.

The transmission assembly 12 comprises a transmission screw 121 and a pressing block 122 in threaded connection with the transmission screw 121, and the transmission assembly 12 is assembled on the first connecting beam 111, so that the transmission screw 121 is supported. That is, the first connection beam 111 serves to support the drive screw 121. The drive screw 121 is used for driving the pressing block 122 to move up and down in the vertical direction.

The limiting assembly 13 is used for limiting the up-and-down movement of the drive screw 121 and limiting the rotation movement of the pressing block 122.

In some embodiments, to facilitate gripping and application of force, the drive screw 121 may have a rotating handle thereon that may contact the upper surface of the first connecting beam 111 to limit downward movement of the drive screw 121 as part of the limit assembly 13; wherein the rotary handle and the drive screw 121 may be of unitary construction. By rotating the rotating handle, the driving screw 121 is rotated, and the limiting assembly 13 can limit the rotation of the pressing block 122, so that the pressing block 122 can move up and down along the vertical direction.

In some embodiments, the number of drive assemblies may be set according to the number of subjects to be tested and the number of pressing portions included in the press block in each drive assembly. Assuming that the number of transmission components is a, the number of objects to be tested is b at the same time, and the number of pressing portions included in the pressing block in each transmission component is c, a×c=b. For example, the number of the objects to be tested is six, the number of the pressing parts included in the pressing block in each transmission assembly is three, and the number of the transmission assemblies is two. Thus, through setting up a plurality of transmission subassembly and can fix a plurality of testees that await measuring to improve test efficiency, the embodiment of the disclosure is not limited to transmission subassembly's quantity.

In the embodiment of the present disclosure, the up-and-down movement of the drive screw 121 is restricted by the limiting assembly 13, and the rotational movement of the pressing block 122 is restricted. When the drive screw 121 is rotated clockwise or counterclockwise, the pressing block 122 cannot be rotated freely, and the pressing block 122 moves linearly downward in the vertical direction to approach the object to be tested slowly until the object to be tested is fixed. Thus, the fixing device in the control system has the following advantages: 1. the pressing block can be moved up and down by rotating the transmission screw rod, so that the driving mode is simpler in the technical scheme, and the punching and fixing on the system platform are not needed, thereby reducing the damage to the system platform; 2. because the limiting component limits the up-and-down motion of the driving screw and the rotation motion of the pressing block, a thread self-locking function is provided between the driving screw and the pressing block in threaded connection, and compared with a spring compression fixing device, the fixing device in the embodiment of the disclosure can not change the pressure of the object to be tested after fixing the object to be tested; 3. the fixing device only comprises a supporting component, a transmission component and a limiting component, and therefore the fixing device in the technical scheme is simple in structure, the pressing block is enabled to move up and down along the vertical direction by rotating the transmission screw rod, and motion transmission is achieved in a mode of converting rotary motion into linear motion, and the operation is convenient; 4. the component structure contained in the fixing device is easy to process, convenient to assemble and easy to operate, has low cost and can be produced in mass.

In some embodiments, referring to fig. 3b, the spacing assembly 13 includes a first spacing assembly 131 and a second spacing assembly 132. Wherein: the first limiting assembly 131 includes a first limiting unit 1311 and a second limiting unit 1312, the first limiting unit 1311 being used to limit the downward movement of the drive screw 121, and the second limiting unit 1312 being used to limit the upward movement of the drive screw 121. The second limiting assembly 132 is used to limit rotational movement of the compact 122.

In some embodiments, the first limit unit comprises: and the first limiting part is fixedly connected with the transmission screw, and the lower surface of the first limiting part is contacted with the upper surface of the first connecting beam and is used for limiting the downward movement of the transmission screw. It can be appreciated that the first limiting part and the driving screw can be in an integral structure or a non-integral structure; further, whichever structure may be provided for driving the drive screw. The first limiting part and the transmission screw are of an integrated structure, so that the component structure of the fixing device can be simplified, and the processing and the assembly are convenient.

In some embodiments, the first limiting unit may further include: the transmission screw passes through the third limiting part, and the third limiting part is positioned between the first connecting beam and the first limiting part and used for limiting the downward movement of the transmission screw; in addition, the third limiting part is also used for increasing the contact area of the transmission screw and the first connecting beam, protecting the upper surface of the first connecting beam when the transmission screw is rotated, and reducing the abrasion to the first connecting beam. In practice, the third stop may include a spacer, which may be made of a sheet material, such as rubber, silicone rubber, metal, neoprene, nitrile rubber, fiberglass, or a plastic polymer (e.g., polytetrafluoroethylene).

In some embodiments, referring to fig. 3c, the drive screw 121 includes a threaded drive rod 1211, the first stop 1311a also functioning as a rotating handle for driving the threaded drive rod 1211; the screw rod 1211 is screw-coupled to the press block. Here, the first limiting portion may have a shape with multiple corners, such as a quadrangular prism, a pentagonal prism, etc., so that the first limiting portion may be conveniently gripped and forced to drive the threaded transmission rod during rotation, or may cooperate with the first connecting beam to limit the downward movement of the transmission screw.

In practice, the thread on the drive screw can be flexibly set. For example, referring to fig. 3c, when the drive screw 121 is partially threaded, the drive screw 121 may include a connecting rod 1212, where the connecting rod 1212 is located between the thread and the rotating handle, or where the connecting rod 1212 is located on a side of the thread away from the press block, so as to avoid the press block from moving too far from the second limiting assembly during upward movement in the vertical direction. The connecting rod 1212 is also used to connect a rotary handle and a threaded drive rod 1211, and the second limiting unit 1312 is fixedly connected to the connecting rod 1212. Thus, when the rotary handle is rotated to drive the drive screw, the second limiting unit can limit the drive screw to move upwards; in addition, the second limiting unit is arranged on the connecting rod, so that the work of the threaded transmission rod is not affected.

For another example, referring to fig. 3d, the screw driving rod 1211 of the driving screw 121 may be entirely provided with screw threads, and the screw threads of the driving screw may be internal or external screw threads, and the connection part may have external or internal screw threads engaged therewith, so that the pressing block may be vertically moved up and down by rotating the driving screw.

In some embodiments, referring to fig. 3e, the drive screw 121 further includes a hole C therein, and the second limiting unit includes: the second limiting portion 1312a is partially disposed in the hole C, and an upper surface of the second limiting portion 1312a contacts a lower surface of the first connecting beam to limit upward movement of the driving screw. Wherein, the hole C can be a through hole or a blind hole, and the second limiting part 1312a can be a bolt; the hole C and the second limiting portion 1312a may be provided with internal threads and external threads, respectively, such that the second limiting portion 1312a is threadedly coupled with the drive screw 121. Because the upper surface of the second limiting part is in contact with the lower surface of the first connecting beam, when the driving screw is rotated, the upward movement of the driving screw can be limited, a precondition is provided for realizing the thread self-locking function, and then when an acting force is applied to the pressing block by a to-be-tested object, the pressing block applies the same force to the to-be-tested object.

In some embodiments, the second limiting unit includes: and the fourth limiting part is movably arranged on the transmission screw and positioned between the second limiting part and the first connecting beam, and is used for increasing the contact area between the second limiting part and the first connecting beam. In practice, the fourth spacing portion may include a spacer, and the fourth spacing portion in the embodiments of the present disclosure may be implemented using the same components as the third spacing portion.

In some embodiments, referring to both fig. 3b and 3f, the second stop assembly 132 includes: the second connection beam 1321 is disposed below the first connection beam 111 and is fixedly connected with the support assembly 11, and the second connection beam 1321 has a via a matched with the pressing block 122, the via a is used for accommodating the pressing block 122 and limiting the rotation movement of the pressing block 122. In implementation, the number of the through holes can be set according to the number of the driving screws, and the shape of the through holes can be set according to the shape of the pressing block. For ease of understanding, the structure of the second connection beam will be described by taking a via hole and a quadrangular prism hole as an example. Therefore, by accommodating part of the transmission screw and the pressing block in the through hole, when the transmission screw is rotated, the rotation motion can be converted into linear motion, the pressing block is driven to move downwards along the vertical direction, and the thread self-locking function is realized.

In some embodiments, referring to both fig. 3b and 3f, brackets 112 and 113 are also located at both ends of second connection beam 1321, and both first connection beam 111 and second connection beam 1321 are movable up and down relative to brackets 112 and 113. In the implementation, the two brackets can be provided with a sliding groove and a plurality of holes for accommodating the bolts, and the first connecting beam and the second connecting beam can move up and down on the brackets through the sliding groove and insert the bolts into the holes for accommodating the bolts when sliding to a preset position. So, when briquetting is far away from the object to be tested, can be earlier through first tie-beam of downwardly moving and second tie-beam, the fixed object to be tested of rethread drive assembly to shorten fixed time, in addition, can fix the object to be tested of different height apart from the briquetting, in order to satisfy different demands.

In some embodiments, referring to fig. 3g, the press block 122 includes a pressing portion 1221 and a connection portion 1222, the connection portion 1222 having threads that mate with a drive screw. For example, the drive screw has external threads and the connection has internal threads; for another example, the drive screw has an internal thread, the connecting portion has an external thread, the external thread is cooperatively connected with the internal thread, and the rotational movement of the drive screw is used to drive the connecting portion to move up and down in the vertical direction. The problem that the socket type fixing device damages the system platform due to punching on the system platform is solved by adopting a simple thread driving mode to fix the object to be tested; meanwhile, the self-locking function of the thread is achieved, so that the problem of compression force change of the spring compression type fixing device caused by spring fatigue can be solved.

In the embodiment of the disclosure, the shape of the connection portion or the shape of the partial pressing portion may be set according to the shape of the via hole, and the pressing surface shape of the pressing portion may be set according to the shape of the object to be tested. It is understood that the same pressing portion may include a plurality of pressing surfaces, so as to fix a plurality of to-be-tested objects in different positions at the same time, and the number and the spacing of the pressing surfaces of the pressing portion may be set according to the number and the spacing of the to-be-tested objects. For example, referring to fig. 3h, if the number of objects to be tested is 2 and the pitch of the objects to be tested is L, the pressing portion 1221 may have two pressing surfaces with the pitch of L. Therefore, the through holes are prismatic holes matched with the connecting parts, so that the pressing block cannot shake in the downward moving process, and damage to an object to be tested is reduced. Of course, the shape of the connection portion may be a triangular prism, a pentagonal prism, a hexagonal prism, or the like, which is not limited in the embodiment of the present disclosure.

In some embodiments, the connection is prismatic in shape and the via is a prismatic hole that mates with the connection. Referring to fig. 3f and 3g simultaneously, the shape of the connection portion 1222 is exemplified as a quadrangular prism; since the connection portion 1222 needs to pass through the second connection beam 1321, correspondingly, the via hole a on the second connection beam 1321 may be a polygonal prism hole such as a quadrangular prism hole or a hexagonal prism hole, which only needs to ensure that the pressing block cannot rotate.

In some embodiments, the pressing portion is prismatic in shape and the via is a prismatic hole that mates with the pressing portion. Here, the shape of the pressing portion may be a triangular prism, a quadrangular prism, a pentagonal prism, a hexagonal prism, or the like, which is not limited in the embodiment of the present disclosure. The shape of the pressing portion will be described with reference to fig. 3g, and the shape of the pressing portion 1221 will be described with reference to a regular square. So, through setting up the via hole for pressing portion assorted prismatic hole, convenient processing makes the briquetting also can be held by the via hole simultaneously, leaves more spaces for the setting of waiting to test the object.

In some embodiments, the size of the cross section of the pressing portion may be set as desired, for example, determined according to the size of the cross section of the object to be tested. The cross section of the pressing portion may be the same size as the cross section of the object to be tested, or may be slightly larger or slightly smaller than the cross section of the object to be tested. In this way, the object to be tested can be better immobilized to prevent the object to be tested from moving.

In some embodiments, referring to fig. 3h, the pressing portion 1221 is detachably connected to the connection portion 1222, and the pressing portion 1221 has one or more pressing surfaces B. So, can dismantle through setting up the pressing part and be connected with connecting portion, and pressing part has one or more pressure face, can change pressing part according to waiting to test object quantity and interval, and then once fix a plurality of waiting to test objects, improve follow-up test efficiency.

In practice, the removable connection may be a hook connection, a key connection, a snap connection or a pin connection, or may be a threaded connection, and those skilled in the art may choose this according to the needs, which is not limited herein.

The detachable connection between the connecting portion and the pressing portion will be described by taking a clamping connection as an example. The connecting part can be provided with a clamping groove with a downward opening, and the pressing part can be provided with a clamping protrusion which is radially outwards; it is understood that the connecting portion has a concave portion, the pressing portion has a protrusion, and the protrusion can be stably clamped in the concave portion without relative movement. In practice, the recess may be "T-shaped" and the protrusion may be "T-shaped". When the assembly is carried out, the connecting part is placed on the pressing part, and the connecting part is rotated to enable the clamping protrusion to be located in the clamping groove.

The detachable connection between the connection portion and the pressing portion will be described by taking a threaded connection as an example. The pressing part may have a threaded hole with a downward opening, the connecting part may have an external thread, and the threaded hole may have an internal thread matching the external thread, so that the pressing part is screwed on the connecting part via the internal thread and the external thread. Therefore, when a plurality of objects to be tested need to be fixed, the pressing part can be detached and replaced, and the objects to be tested are fixed at one time. Meanwhile, the pressing part is prismatic in shape, the surface of the pressing part is provided with a prismatic angle, and the disassembling tool is easier to clamp during disassembly and assembly, is not easy to slip, and is convenient to disassemble and assemble.

The embodiment of the present disclosure further provides a control method, which is applied to the control component in any of the foregoing embodiments, referring to fig. 4, and includes the following steps:

step S401, obtaining a temperature value of a subject to be tested from a temperature detection component;

step S402, controlling the heating temperature of the heating component based on the temperature value so that the object to be tested has a preset temperature;

in step S403, the pressure value applied by the fixing device to the object to be tested is controlled based on the temperature value, so that the object to be tested is subjected to the preset pressure value under any temperature condition.

In some embodiments, the method further comprises: in step S404, the fixing device is adjusted based on the temperature value and the pressure value, so that the fixing device applies a preset pressure value to the object to be tested under any temperature condition.

In some embodiments, step S402 may include: step S4021, reducing the output power of the heating component under the condition that the temperature value of the object to be tested is larger than the preset temperature; step S4022, increasing the output power of the heating component under the condition that the temperature value of the object to be tested is smaller than the preset temperature; in step S4023, when the temperature value of the object to be tested is equal to the preset temperature, the output power of the heating assembly is controlled to be unchanged, so that the object to be tested maintains the preset temperature.

The embodiment of the present disclosure further provides a control device, referring to fig. 5, including: an acquisition module 51 for acquiring a temperature value of the object to be tested from the temperature detection component; a first control module 52 for controlling the heating temperature of the heating assembly based on the temperature value so that the subject to be tested has a preset temperature; the second control module 53 is configured to control a pressure value applied by the fixing device to the object to be tested based on the temperature value, so that the object to be tested is subjected to a preset pressure value under any temperature condition.

In some embodiments, the first control module comprises: the first sub-control module is used for reducing the output power of the heating component under the condition that the temperature value of the object to be tested is larger than the preset temperature; increasing the output power of the heating assembly under the condition that the temperature value of the object to be tested is smaller than the preset temperature; and under the condition that the temperature value of the object to be tested is equal to the preset temperature, controlling the output power of the heating component to be unchanged so as to enable the object to be tested to have the preset temperature.

In practice, the control component is used to control itself and the memory to implement the steps in the control method embodiments described above. The control component may be a CPU (Central Processing Unit ). The control component may also be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The disclosed embodiments provide a computer readable storage medium having stored thereon a computer program which, when executed by a control component, implements the steps of the control method embodiments described above.

In some embodiments, the functions or modules included in the apparatus provided by the embodiments of the present disclosure may be used to perform the methods described in the method embodiments, and the specific implementation of the method may refer to the descriptions of the method embodiments, which have similar beneficial effects as those of the method embodiments.

The above description of various embodiments is intended to emphasize the differences between the various embodiments, the same or similar features being referred to each other.

In several embodiments provided by the present disclosure, it should be understood that the disclosed systems and methods may be implemented in a non-targeted manner. The system embodiment described above is merely illustrative, and for example, the division of the units is merely a logical function division, and there may be other division manners in actual implementation, such as: multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. In addition, the components shown or discussed are coupled to each other or directly.

The units described as separate units may or may not be physically separate, and units displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units; some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The features disclosed in the several method or system embodiments provided in the present disclosure may be arbitrarily combined without conflict to obtain new method embodiments or system embodiments.

While the foregoing is directed to embodiments of the present disclosure, the scope of the embodiments of the present disclosure is not limited to the foregoing, and any changes and substitutions that are within the scope of the embodiments of the present disclosure will be readily apparent to those skilled in the art. Therefore, the protection scope of the embodiments of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A control system, comprising:

a fixing device for fixing the object to be tested;

a heating assembly for heating the subject to be tested;

A temperature detection component for detecting a temperature value of the object to be tested;

the control assembly is used for receiving the temperature value detected by the temperature detection assembly in real time, controlling the heating temperature of the heating assembly based on the temperature value so that the object to be tested has a preset temperature, and controlling the pressure value applied by the fixing device to the object to be tested based on the temperature value so that the object to be tested bears the preset pressure value under any temperature condition.

2. The system of claim 1, wherein the temperature sensing assembly and the heating assembly are located on opposite sides of the subject to be tested.

3. The system of claim 1, further comprising:

the pressure detection assembly is used for detecting a pressure value applied to the object to be tested by the fixing device, and the control assembly is also used for adjusting the fixing device based on the temperature value and the pressure value so that the object to be tested can bear a preset pressure value under any temperature condition.

4. A system according to claim 3, wherein the pressure detection assembly is located between the subject to be tested and the press block of the fixture or the subject to be tested is located between the pressure detection assembly and the press block of the fixture.

5. The system of claim 1, wherein the fixture comprises:

the support assembly comprises a first connecting beam which is transversely arranged;

the transmission assembly comprises a transmission screw and a pressing block in threaded connection with the transmission screw, the first connecting beam is used for supporting the transmission screw, and the transmission screw is used for driving the pressing block to move up and down along the vertical direction;

and the limiting assembly is used for limiting the up-and-down movement of the transmission screw and limiting the rotation movement of the pressing block.

6. The system of claim 5, wherein the limit assembly comprises:

the first limiting assembly comprises a first limiting unit and a second limiting unit, the first limiting unit is used for limiting the downward movement of the transmission screw, and the second limiting unit is used for limiting the upward movement of the transmission screw;

and the second limiting assembly is used for limiting the rotary motion of the pressing block.

7. The system of claim 6, wherein the first limit unit comprises:

and the first limiting part is fixedly connected with the transmission screw, and the lower surface of the first limiting part is contacted with the upper surface of the first connecting beam and used for limiting the downward movement of the transmission screw.

8. The system of claim 7, wherein the first stop is integrally formed with the drive screw.

9. The system of claim 8, wherein the drive screw includes a threaded drive rod, the first limit also functioning as a rotating handle for driving the threaded drive rod;

the threaded transmission rod is in threaded connection with the pressing block.

10. The system of claim 9, wherein the drive screw further comprises a connecting rod for connecting the rotary handle and the threaded drive rod, and wherein the second limit unit is fixedly connected with the connecting rod.

11. The system of claim 6, wherein the drive screw further comprises a bore therein, and wherein the second limit unit comprises:

and the second limiting part is partially arranged in the hole, and the upper surface of the second limiting part is contacted with the lower surface of the first connecting beam and is used for limiting the upward movement of the transmission screw.

12. The system of claim 6, wherein the second stop assembly comprises:

the second connecting beam is arranged below the first connecting beam and fixedly connected with the supporting component, the second connecting beam is provided with a through hole matched with the pressing block, and the through hole is used for accommodating the pressing block and limiting the rotating movement of the pressing block.

13. The system of claim 12, wherein the press block includes a pressing portion and a connecting portion having threads that mate with the drive screw.

14. The system of claim 13, wherein the drive screw has external threads and the connecting portion has internal threads, the external threads being matingly coupled to the internal threads, and wherein rotational movement of the drive screw is used to drive the connecting portion to move up and down in a vertical direction.

15. The system of any one of claims 12 to 14, wherein the support assembly further comprises: the vertical setting in first tie-beam with two supports at second tie-beam both ends, first tie-beam with the second tie-beam all can for the support reciprocates.