CN215768903U - Proximity switch high-temperature characteristic test machine - Google Patents

Abstract

The utility model belongs to the technical field of detection, and discloses a proximity switch high-temperature characteristic testing machine which comprises a testing system, a heating device for heating a product to be tested, a plurality of product clamps, a power-on mechanism, a detection mechanism, a first displacement assembly and a second displacement assembly, wherein the product to be tested is fixed on the product clamps, the product to be tested comprises an induction surface and a power line, the power-on mechanism is used for connecting the testing system with the power line, the first displacement assembly is used for driving the power-on mechanism and the second displacement assembly to be sequentially close to the product clamps, and the second displacement assembly is used for driving the detection mechanism to be close to or far away from the induction surface. The utility model has the beneficial effects that: the device has a simple structure, realizes the automation of high-temperature test products, improves the product test efficiency, reduces the manual dependence, improves the test accuracy, saves and tracks data, and is favorable for reliability analysis of the products.

Description

Proximity switch high-temperature characteristic test machine

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of detection, in particular to a proximity switch high-temperature characteristic testing machine.

[ background of the utility model ]

The working environment of the existing inductive and capacitive sensors is generally required to be-40-85 ℃, in order to ensure stable working in the temperature range, the characteristics of the high and low temperature sections of the product need to be tested, then the product is subjected to temperature compensation or whether indexes exceed specifications or not is observed, and a circuit part is modified to ensure the effective service life of electronic elements and the whole product. The indexes to be observed by the sensor are mainly as follows: inductive distance, supply current, voltage drop, etc. In the traditional method, part of the tooling jig and the product are put into a warm box together, then a test wire is led out of the box body, and a corresponding instrument is connected to artificially record the change condition of parameters.

In the existing scheme, part of tools are required to be placed into a box body together for testing, and the number of the tools which can be measured at one time is small due to the limited volume of the box body. After a single product is tested, when the next product or different test items need to be switched, the wiring mode needs to be switched continuously, so that the test efficiency is very low, data is easy to make mistakes, and the product sequence is not equal. Since the temperature transmission is air conduction after the product is put into the box, each batch of the product put into the box needs to be heated for more than half an hour for waiting time in order to enable the product to reach the set temperature, and therefore, the product is generally only taken out for a plurality of times in one batch and is used as the evaluation of a temperature experiment. Some electrical parameters need to be in the box, with mechanical switching action, with no testing due to complexity.

Therefore, it is necessary to provide a proximity switch high temperature characteristic testing machine, which can improve the convenience and efficiency of the high temperature test of the sensor, solve the inconvenience of the operation in the box at the main high temperature stage during the test, improve the single measurement time, realize the automatic operation, reduce the error rate, reduce the contact heat transfer and the one-key type multi-quantity cycle uninterrupted measurement mode, and improve the measurement speed.

[ Utility model ] content

The utility model discloses a proximity switch high-temperature characteristic testing machine which can effectively solve the technical problems related to the background technology.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a proximity switch high-temperature characteristic testing machine comprises a testing system, a heating device used for heating a product to be tested, a plurality of product clamps, a power-on mechanism, a detection mechanism, a first displacement assembly and a second displacement assembly, wherein the first displacement assembly is located on one side of the heating device, the power-on mechanism and the second displacement assembly are fixed on the first displacement assembly, the detection mechanism is fixed on the second displacement assembly, the product to be tested is fixed on the product clamps, the product to be tested comprises a sensing surface and a power line, the power-on mechanism is used for connecting the testing system with the power line, and the first displacement assembly is used for driving the power-on mechanism and the second displacement assembly to sequentially approach each product clamp;

the detection mechanism comprises a lower base plate, a first driving device, a clamping jaw, an upper base plate, a fixed block, an induction device, an induction plate, a spring, a reset plate and an induction block, wherein the lower base plate is driven by the second displacement assembly to be close to or far away from the induction surface, the clamping jaw is assembled on the first driving device, the upper base plate is movably assembled on the lower base plate, the fixed block, the induction plate and the induction block are fixed on the upper base plate, the induction plate is positioned on one side, close to the induction surface, of the upper base plate, the fixed block is matched and fixed with the clamping jaw to be used for fixedly connecting the lower base plate with the upper base plate, and the induction device is matched with the induction block to be used for detecting whether the induction plate is abutted against the induction surface or not, the upper plate is provided with a groove, and the reset plate is connected with the inner wall of the groove through the spring.

As a preferred improvement of the present invention: the number of the product clamps is 9.

As a preferred improvement of the present invention: the second displacement assembly comprises a motor, and the motor is used for driving the lower bottom plate to be close to or far away from the induction surface.

As a preferred improvement of the present invention: the product clamp is arranged in parallel along the front-back direction, the first shifting assembly is located on the right side of the heating device and used for driving the power-on mechanism and the second shifting assembly to move along the front-back direction, and the second shifting assembly is used for driving the lower bottom plate to move along the left-right direction.

As a preferred improvement of the present invention: the product anchor clamps include relative and interval left riser and right riser that sets up and connect left riser with the connecting plate of right riser, be equipped with on the riser of a left side with the wiring board that the power cord is connected, be equipped with on the riser of the right side and be used for fixing the product fixed orifices of response face and with the PCB board that the wiring board is connected.

As a preferred improvement of the present invention: the power-on mechanism comprises a substrate, a second driving device and a thimble fixed on the substrate, one end of the thimble is connected with the test system, and the second driving device drives the substrate to move so as to connect the other end of the thimble with the power line.

As a preferred improvement of the present invention: the second driving device comprises a second pneumatic cylinder, and the second pneumatic cylinder is used for driving the substrate to move.

As a preferred improvement of the present invention: the induction device comprises a groove-shaped photoelectric switch, and the groove-shaped photoelectric switch is used for inducing the position of the induction block.

As a preferred improvement of the present invention: the first driving device comprises a first pneumatic cylinder, and the first pneumatic cylinder is used for driving the clamping jaw to move.

As a preferred improvement of the present invention: the heating device comprises a heating plate.

The utility model has the following beneficial effects:

1. the high-temperature parameters of the traditional sensor are placed in a high-temperature box, a test line is led out to the outside of a box body, products are tested in a wiring mode outside the box one by one, a large amount of time is consumed in heating of a high-temperature section and manual wiring, test items are complicated, the risk of wrong wiring is increased, the device is an open type and modularized product placing scheme, one-key type measurement is carried out, and multiple products are tested at one time;

2. the automation of high-temperature test products is realized, the product test efficiency is improved, and the dependence on workers is reduced;

3. the test accuracy is improved, data are stored and tracked, reliability analysis on products is facilitated, and the product performance and yield are improved;

4. the original air transfer and frequent door opening are changed into contact type heat transfer and continuous operation, and the energy consumption is reduced.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic diagram of a proximity switch high temperature characteristic testing machine according to the present invention;

FIG. 2 is a schematic diagram of a structure of a product to be tested according to the present invention;

FIG. 3 is a schematic view of the detecting mechanism of the present invention;

FIG. 4 is a schematic view of the second driving device assembly of the present invention;

FIG. 5 is a schematic view of a product clamp of the present invention;

FIG. 6 is a schematic diagram of the structure of the power-up mechanism of the present invention.

In the figure: 100-heating device, 200-product clamp, 201-left vertical plate, 202-right vertical plate, 203-connecting plate, 204-product fixing hole, 205-PCB plate, 206-wiring plate, 300-power-up mechanism, 301-base plate, 302-second driving device, 303-thimble, 400-detection mechanism, 401-lower base plate, 402-first driving device, 403-clamping jaw, 404-upper base plate, 405-fixing block, 406-sensing device, 407-sensing plate, 408-groove, 409-spring, 410-reset plate, 411-sensing block, 500-first displacement component, 501-first supporting plate, 600-second displacement component, 601-second supporting plate, 700-product to be tested, 701-sensing surface, 702-power line.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a proximity switch high temperature characteristic testing machine, including a testing system, a heating device 100 for heating a product 700 to be tested, a plurality of product clamps 200, a power-on mechanism 300, a detection mechanism 400, a first shift assembly 500 and a second shift assembly 600, wherein the product clamps 200 are fixed on the heating device 100, the first shift assembly 500 is located at one side of the heating device 100, the power-on mechanism 300 and the second shift assembly 600 are fixed on the first shift assembly 500, the detection mechanism 400 is fixed on the second shift assembly 600, the product 700 to be tested is fixed on the product clamps 200, the product 700 to be tested includes a sensing surface 701 and a power line 702, the power-on mechanism 300 is used for connecting the testing system with the power line 702, the first shift assembly 500 is used for driving the power-on mechanism 300 and the second shift assembly 600 to sequentially approach each of the product clamps 200 Product holder 200. Specifically, the test system performs tests on the product 700 to be tested in terms of current, voltage, induction distance, and the like. The product clamp 200 fixes the product 700 to be tested, so that the product is prevented from deviating, and the influence on the experimental result is reduced. The first shifting assembly 500 drives the power-on mechanism 300 and the second shifting assembly 600 to sequentially approach each product clamp 200, and the power-on mechanism 300 connects the test system with the power line 702 to test the product 700 to be tested. After the test is completed, the power-on mechanism 300, the detection mechanism 400, and the like are reset, and then the next product 700 to be tested is tested under the driving of the first displacement assembly 500. The detection mechanism 400 is matched with the sensing surface 701 and is used for detecting performances such as the sensing distance of the product 700 to be detected. One-key measurement is carried out, a plurality of products and a plurality of projects are tested at one time, the automation of high-temperature test products is realized, and the product test efficiency is improved.

Referring to fig. 3-4, the detecting mechanism 400 includes a lower plate 401 driven by the second shifting assembly 600 to approach or separate from the sensing surface 701, a first driving device 402, a clamping jaw 403 mounted on the first driving device 402, an upper plate 404 movably mounted on the lower plate 401, a fixed block 405, a sensing device 406, a sensing plate 407, a spring 409, a reset plate 410, and a sensing block 411, the first driving device 402, the sensing device 406, and the reset plate 410 are fixed on the lower plate 401, the fixed block 405, the sensing plate 407, and the sensing block 411 are fixed on the upper plate 404, the sensing plate 407 is located on a side of the upper plate 404 close to the sensing surface 701, the fixed block 405 is fixed by the first driving device 402 and the clamping jaw 403 in cooperation, so as to fixedly connect the lower plate 401 and the upper plate 404, the sensing device 406 and the sensing block 411 are matched to detect whether the sensing plate 407 abuts against the sensing surface 701 or not, the upper base plate 404 is provided with a groove 408, and the reset plate 410 is connected with the inner wall of the groove 408 through the spring 409. Specifically, the second displacement assembly 600 drives the whole detection mechanism 400 to move, so that the sensing plate 407 is close to the sensing surface 701, and the position of the sensing plate after being attached to the product 700 to be measured returns to zero and is kept for measuring the sensing distance. The upper base plate 404 is movably connected to the lower base plate 401 through a sliding rail or the like, and after the sensing plate 407 contacts the sensing surface 701, the upper base plate 404 and the lower base plate 401 move in opposite directions under a reaction force, and the sensing block 411 enters a sensing area of the sensing device 406. At this time, the second displacement assembly 600 is closed, the detection mechanism 400 stops moving, the first driving device 402 and the clamping jaw 403 are matched to fix the fixed block 405, the lower base plate 401 and the upper base plate 404 move synchronously, and the product 700 to be tested is tested for sensing distance under the driving of the second displacement assembly 600. After the test is completed, the clamping jaw 403 releases the fixed block 405, the upper base plate 404 is restored to the original position under the action of the spring 409, and the second displacement assembly 600 is also restored to the initial position at the same time to prepare for the next test of the product 700 to be tested.

Preferably, the number of the product holders 200 is 9, the product holders 200 are arranged in parallel in the front-rear direction, the first displacement assembly 500 is located at the right side of the heating device 100, the first displacement assembly 500 is used for driving the power-on mechanism 300 and the second displacement assembly 600 to move in the front-rear direction, and the second displacement assembly 600 is used for driving the lower plate 401 to move in the left-right direction.

The second displacement assembly 600 comprises a motor, and the distance that the second displacement assembly 600 drives the detection mechanism 400 to move can be calculated through the number of turns of the motor, so that the test result of the induction distance of the product 700 to be tested is determined. It should be further noted that other components may be employed to achieve the above-mentioned effects, which are within the inventive concept of the present invention and are within the scope of the present invention.

Referring to fig. 5, the product clamp 200 includes a left vertical plate 201 and a right vertical plate 202 which are opposite and spaced apart from each other, and a connection plate 203 which connects the left vertical plate 201 and the right vertical plate 202, wherein the left vertical plate 201 is provided with a connection board 206 which is connected with the power line 702, and the right vertical plate 202 is provided with a product fixing hole 204 for fixing the sensing surface 701 and a PCB 205 which is connected with the connection board 206. Specifically, the product 700 to be tested comprises a long power line, and the line is placed on the connecting plate 203, so that management is facilitated. The PCB 205 passes through the wiring board 206 with the power cord 702 is connected, and the PCB 205 with the sensing face 701 is in same one side, when the second displacement subassembly 600 drives the sensing board 407 is close to the sensing face 701, power-up mechanism 300 also can be close to the PCB 205, power-up mechanism 300 contacts the PCB 205, just realized power-up mechanism 300 with the connection of the product 700 that awaits measuring, the device structure is simpler, the operation is more smooth.

Referring to fig. 6, the power-up mechanism 300 includes a substrate 301, a second driving device 302, and a thimble 303 fixed on the substrate 301, wherein one end of the thimble 303 is connected to the test system, and the second driving device 302 drives the substrate 301 to move so as to connect the other end of the thimble 303 to the power line 702. In this embodiment, the first displacement assembly 500 comprises a first support plate 501 and the second displacement assembly 600 comprises a second support plate 601. The second driving device 302 and the second displacement assembly 600 are fixed on the support plate 501, and the lower plate 401 is fixed on the second support plate 601. The supporting plate 501 and the second supporting plate 601 serve as a connecting platform, and installation of accessories is facilitated.

In this embodiment, the second driving device 302 comprises a second pneumatic cylinder, and the first driving device 402 comprises a first pneumatic cylinder, and the operation is stable by using the pneumatic cylinder as a power source of the driving device. The sensing device 406 includes a groove-type photoelectric switch, and the position of the sensing block 411 is sensed by the groove-type photoelectric switch. The heating device 100 comprises a heating plate, the product clamp 200 is made of metal, and the heating plate transfers heat to the product 700 to be tested through the heat conduction of the product clamp 200, so that the product 700 to be tested is heated.

The working principle is that the device has the following operation steps:

1. 1-9 product clamps 200 are placed on the heating device 100 and preheated to the required temperature in advance, and a heating controller is arranged on the heating device 100 for temperature adjustment.

2. The product 700 to be tested is placed on the product clamp 200, the sensing surface 701 protrudes out of the product fixing hole 204, the power line 702 is connected to the wiring board 206, and the wiring board 206 in the product clamp 200 is connected to the PCB 205.

3. The first shifting unit 500 drives the power-up mechanism 300, the second shifting unit 600 and the detection mechanism 400 to move to the corresponding product clamp 200 in sequence.

4. The second driving device 302 acts to push the thimble 303 to extend, one end of the thimble 303 is connected to the testing system, the other end of the thimble 303 contacts the PCB 205, and the PCB 205 is connected to the power line 702, so that the testing system is connected to the circuit of the product 700 to be tested.

5. The second displacement assembly 600 drives the detection mechanism 400 to move leftwards, the sensing plate 407 contacts the sensing surface 701, and when the sensing device 406 on the detection mechanism 400 outputs, the clamping jaw 403 clamps the fixed block 405, and at this time, the fixed block is marked as a sensing distance zero position.

6. The second displacement assembly 600 drives the detection mechanism 400 to move rightward, and the movement output of the product 700 to be detected is reversed during movement, and at this time, the mark is a far point of the sensing distance.

7. The second displacement assembly 600 drives the detection mechanism 400 to move leftward, and the movement output of the product 700 to be detected is reversed during movement, and at this time, the mark is a near point of the sensing distance.

8. Through the steps 6 and 7, the induction distance and the return difference are calculated, and meanwhile in the processes of the step 6 and the step 7, when the output state of the product 700 to be tested is reversed, the load current and the no-load current are measured.

9. After the measurement of the single product 700 to be measured is completed, all the actuating mechanisms such as the detection mechanism 400, the power-on mechanism 300 and the second displacement assembly 600 are reset. The first shifting assembly 500 drives the upper part thereof to move to the next product clamp 200, and simultaneously, the tested product 700 to be tested is manually unloaded and a new product 700 to be tested is loaded.

While embodiments of the utility model have been disclosed above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the utility model pertains, and further modifications may readily be made by those skilled in the art, it being understood that the utility model is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a proximity switch high temperature characteristic test machine which characterized in that: the product clamp comprises a test system, a heating device (100) used for heating a product (700) to be tested, a plurality of product clamps (200), an electricity-adding mechanism (300), a detection mechanism (400), a first displacement assembly (500) and a second displacement assembly (600), wherein the product clamps (200) are fixed on the heating device (100), the first displacement assembly (500) is positioned on one side of the heating device (100), the electricity-adding mechanism (300) and the second displacement assembly (600) are fixed on the first displacement assembly (500), the detection mechanism (400) is fixed on the second displacement assembly (600), the product (700) to be tested is fixed on the product clamps (200), the product (700) to be tested comprises an induction surface (701) and a power line (702), the first displacement assembly (500) is used for driving the electricity-adding mechanism (300) and the second displacement assembly (600) to be sequentially close to each product clamp (200), the power-up mechanism (300) is used for connecting the test system with the power line (702);

the detection mechanism (400) comprises a lower base plate (401) driven by the second displacement assembly (600) to be close to or far away from the sensing surface (701), a first driving device (402), a clamping jaw (403) assembled on the first driving device (402), an upper base plate (404) movably assembled on the lower base plate (401), a fixed block (405), a sensing device (406), a sensing plate (407), a spring (409), a reset plate (410) and a sensing block (411), wherein the first driving device (402), the sensing device (406) and the reset plate (410) are fixed on the lower base plate (401), the fixed block (405), the sensing plate (407) and the sensing block (411) are fixed on the upper base plate (404), and the sensing plate (407) is positioned on one side of the upper base plate (404) close to the sensing surface (701), the first driving device (402) and the clamping jaw (403) are matched and fixed with the fixing block (405) to be used for fixedly connecting the lower base plate (401) with the upper base plate (404), the sensing device (406) is matched with the sensing block (411) to be used for detecting whether the sensing plate (407) is abutted to the sensing surface (701) or not, the upper base plate (404) is provided with a groove (408), and the reset plate (410) is connected with the inner wall of the groove (408) through the spring (409).

2. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the number of the product clamps (200) is 9.

3. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the second displacement assembly (600) comprises a motor, and the motor is used for driving the lower base plate (401) to be close to or far away from the induction surface (701).

4. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the product clamp (200) is arranged in parallel in the front-back direction, the first shifting assembly (500) is located on the right side of the heating device (100) and used for driving the power-on mechanism (300) and the second shifting assembly (600) to move in the front-back direction, and the second shifting assembly (600) is used for driving the lower bottom plate (401) to move in the left-right direction.

5. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the product clamp (200) comprises a left vertical plate (201) and a right vertical plate (202) which are arranged oppositely and at intervals, and a connecting plate (203) which is connected with the left vertical plate (201) and the right vertical plate (202), wherein a wiring board (206) which is connected with a power line (702) is arranged on the left vertical plate (201), and a product fixing hole (204) which is used for fixing the sensing surface (701) and a PCB (205) which is connected with the wiring board (206) are arranged on the right vertical plate (202).

6. A proximity switch high temperature characteristic tester as claimed in claim 1 or 5, wherein: the power-on mechanism (300) comprises a substrate (301), a second driving device (302) and a thimble (303) fixed on the substrate (301), one end of the thimble (303) is connected with the test system, and the second driving device (302) drives the substrate (301) to move so as to connect the other end of the thimble (303) with the power line (702).

7. The proximity switch high temperature characteristic tester as claimed in claim 6, wherein: the second driving device (302) comprises a second pneumatic cylinder, and the second pneumatic cylinder is used for driving the substrate (301) to move.

8. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the sensing device (406) comprises a groove-shaped photoelectric switch which is used for sensing the position of the sensing block (411).

9. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the first driving device (402) comprises a first pneumatic cylinder, and the first pneumatic cylinder is used for driving the clamping jaw (403) to move.

10. A proximity switch high temperature characteristic tester as claimed in claim 1, wherein: the heating device (100) comprises a heating plate.

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