Testing equipment for piezoresistor

Abstract

The utility model discloses a test device for a piezoresistor, which belongs to the technical field of piezoresistors and comprises a workbench, a conveying assembly arranged at the top end of the workbench, a test board fixedly connected to the top end of the workbench, a circular groove formed in the top end of the test board, and a plurality of U-shaped grooves formed in the top end of a rotating disc. And the top end of the test board is fixedly connected with an L-shaped mounting plate. According to the utility model, through the arrangement of the conveying assembly, the rotating disc, the pushing assembly and the collecting box, the piezoresistor is conveyed into the rotating disc through the conveying assembly, the piezoresistor is tested through the testing equipment body, the unqualified piezoresistor is pushed into the collecting box by the pushing assembly, and the qualified piezoresistor is continuously conveyed by the conveying assembly; according to the piezoresistor screening device, the qualified and unqualified piezoresistors can be screened without placing the piezoresistors in the rotating disc or taking the piezoresistors out of the rotating disc by a worker, so that time and labor are saved, and the testing efficiency of the piezoresistors is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure sensitive resistor technical field especially relates to a pressure sensitive resistor's testing equipment. BACKGROUND

[0002] The pressure sensitive resistor is a kind of voltage limiting protection device, using the nonlinear characteristic of pressure sensitive resistor, when overvoltage appears between the two poles of pressure sensitive resistor, pressure sensitive resistor can clamp voltage to a relatively fixed voltage value, to realize the protection of the later stage circuit.

[0003] The prior art (patent number: 202222684705.2, patent name: pressure sensitive resistor testing device), the patent is by setting conveying assembly, rotating assembly, telescopic cylinder and test equipment body, by conveying assembly, pressure sensitive resistor is conveyed to rotating assembly, and by telescopic cylinder drive test equipment body to test pressure sensitive resistor.

[0004] The problems in the above-mentioned patent: the above-mentioned device can complete the test to pressure sensitive resistor, but the staff needs to place the pressure sensitive resistor conveyed to the resistance placing groove on the rotating placing disc, when completing the test to pressure sensitive resistor, the staff needs to take out the tested pressure sensitive resistor from the resistance placing groove, then the qualified and unqualified pressure sensitive resistor is screened, which is time-consuming and laborious, and reduces the test efficiency of pressure sensitive resistor, therefore a pressure sensitive resistor testing equipment is proposed to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problems in the above-mentioned technology, and proposes a pressure sensitive resistor testing equipment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A pressure sensitive resistor testing equipment, including workbench, the top of the workbench is provided with conveying assembly, the top of the workbench is fixedly connected with test table, the top of the test table is equipped with circular slot, the circular slot is rotatably connected with rotating disc, the top of the rotating disc is equipped with multiple U-shaped grooves, the top of the test table is fixedly connected with L-shaped mounting plate, the top of the test table is provided with servo motor through the fixed seat and is installed at one end of L-shaped mounting plate, the output end of the servo motor is fixedly connected with the rotating shaft fixedly connected with the top of the rotating disc, the rotating shaft is provided with pusher assembly.

[0008] Preferably, one end of the test table is provided with through slot for conveying assembly, the conveying assembly includes two groups of fixed blocks fixedly connected to the top of the workbench, a conveying roller is rotatably connected between each group of fixed blocks, and a conveying belt is connected between the conveying rollers.

[0009] Preferably, one end of one of the fixed blocks is provided with a driving motor through a mounting base, and an output end of the driving motor is fixedly connected with a driving shaft fixedly connected with one of the conveying rollers.

[0010] Preferably, a top end of the L-shaped mounting plate is provided with a hydraulic cylinder, one end of the hydraulic cylinder penetrates through the L-shaped mounting plate, and one end of the hydraulic cylinder is fixedly connected with a test equipment body.

[0011] Preferably, the pushing assembly comprises an electric push rod rotationally connected to the surface of the rotating shaft, one end of the electric push rod is fixedly connected with an arc-shaped push plate abutting the rotating disc, and a top end of the test table is provided with a controller electrically connected with the electric push rod.

[0012] Preferably, the surface of the conveying belt is provided with two groups of limiting plates, one end of the limiting plates is fixedly connected with one end of the test table, a top end of the workbench is provided with a collecting box abutting one end of the test table, and one end of the collecting box is fixedly connected with a handle.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses a conveying assembly, a rotating disc, a pushing assembly and a collecting box are arranged, the piezoresistor is conveyed to the rotating disc through the conveying assembly, and the piezoresistor is tested through the test equipment body, the piezoresistor that does not meet the requirements is pushed into the collecting box through the pushing assembly, and the piezoresistor that meets the requirements is continuously conveyed through the conveying assembly, so that the piezoresistor that meets the requirements and the piezoresistor that does not meet the requirements can be screened out without the need of placing the piezoresistor into the rotating disc and taking the piezoresistor out of the rotating disc, time and labor are saved, and the test efficiency of the piezoresistor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A three-dimensional structure diagram of a piezoresistor test equipment is provided for the utility model Figure 1 .

[0016] Figure 2 A three-dimensional structure diagram of a piezoresistor test equipment is provided for the utility model Figure 2 .

[0017] Figure 3 An assembly drawing of a conveying belt and a test table in a piezoresistor test equipment is provided for the utility model.

[0018] Figure 4 An assembly drawing of a test table and a rotating disc in a piezoresistor test equipment is provided for the utility model.

[0019] Figure 5 An assembly drawing of a hydraulic cylinder and an L-shaped mounting plate in a piezoresistor test equipment is provided for the utility model.

[0020] In the figure: 1, workbench; 2, collection box; 3, fixed block; 4, conveying roller; 5, conveying belt; 501, limiting plate; 6, driving motor; 7, test table; 701, controller; 8, rotating disc; 9, L-shaped mounting plate; 10, hydraulic cylinder; 1001, test equipment body; 11, servo motor; 1101, rotating shaft; 12, electric push rod; 1201, arc-shaped push plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Referring to Figures 1-5 A test device for piezoresistors comprises a workbench 1, the top end of the workbench 1 is fixedly connected with a test table 7, the top end of the test table 7 is provided with a circular groove, a rotating disc 8 is rotatably connected in the circular groove, the top end of the rotating disc 8 is provided with a plurality of U-shaped grooves, the top end of the test table 7 is fixedly connected with an L-shaped mounting plate 9 (one end of the L-shaped mounting plate 9 is provided with a notch, so as to avoid that the L-shaped mounting plate 9 blocks the rotating disc 8 from rotating), a servo motor 11 is arranged above the test table 7 and is installed at one end of the L-shaped mounting plate 9 through a fixing seat, the output end of the servo motor 11 is fixedly connected with a rotating shaft 1101 fixedly connected with the top end of the rotating disc 8 (the servo motor 11 drives the rotating disc 8 to rotate through the rotating shaft 1101, so as to rotate the piezoresistor to the test device body for testing);

[0023] The rotating shaft 1101 is provided with a pushing assembly (the pushing assembly pushes the piezoresistor that fails the test, so as to screen it), the pushing assembly comprises an electric push rod 12 rotatably connected to the surface of the rotating shaft 1101, one end of the electric push rod 12 is fixedly connected with an arc-shaped push plate 1201 abutting the rotating disc 8, the top end of the test table 7 is installed with a controller 701 electrically connected with the electric push rod 12 (the controller 701 controls the electric push rod 12 to push the arc-shaped push plate 1201, so as to push the piezoresistor that fails the test into the collection box 2).

[0024] Further, the top end of the workbench 1 is provided with a conveying assembly (the conveying assembly conveys the pressure-sensitive resistors), one end of the test table 7 is provided with a through slot for the conveying assembly to pass through, the conveying assembly comprises two groups of fixed blocks 3 fixedly connected to the top end of the workbench 1, rotatingly connected with conveying rollers 4 between each group of fixed blocks 3, and connected with a conveying belt 5 (the conveying belt 5 conveys the pressure-sensitive resistors to the test equipment body 1001, and also conveys the tested qualified pressure-sensitive resistors) between the conveying rollers 4, and one end of one of the fixed blocks 3 is installed with a driving motor 6 through a mounting seat, and the output end of the driving motor 6 is fixedly connected with a driving shaft fixedly connected with one of the conveying rollers 4 (the driving motor 6 drives the conveying rollers 4 to rotate through the driving shaft, so that the conveying belt 5 rotates to convey the pressure-sensitive resistors, thereby facilitating the testing of the pressure-sensitive resistors).

[0025] It should be noted that: the top end of the L-shaped mounting plate 9 is provided with a hydraulic cylinder 10, one end of the hydraulic cylinder 10 penetrates through the L-shaped mounting plate 9, and one end of the hydraulic cylinder 10 is fixedly connected with the test equipment body 1001 (the hydraulic cylinder 10 drives the test equipment body 1001 to move downward to test the pressure-sensitive resistors, and the test equipment body 1001 is electrically connected with the controller 701).

[0026] It is worth noting that: the surface of the conveying belt 5 is provided with two groups of limiting plates 501 (the limiting plates 501 limit the position of the pressure-sensitive resistors conveyed by the conveying belt 5, to avoid the position of the pressure-sensitive resistors from moving during conveying), one end of the limiting plate 501 is fixedly connected with one end of the test table 7, and the top end of the workbench 1 is placed with a collecting box 2 abutting one end of the test table 7 (the collecting box 2 collects the tested unqualified pressure-sensitive resistors), and one end of the collecting box 2 is fixedly connected with a handle

[0027] The above further benefits are: the above device does not need the staff to place the pressure-sensitive resistors into the rotating disc 8, and also does not need to take out the pressure-sensitive resistors from the rotating disc 8, so that the qualified and unqualified pressure-sensitive resistors can be screened, which saves time and effort and improves the testing efficiency of the pressure-sensitive resistors.

[0028] When using the device, the staff controls the rotating time of the driving motor 6, so that it rotates intermittently, and each time it drives the rotating disc 8 to rotate by 90 degrees.

[0029] The driving motor 6 is a prior art, the model is KYDAS96300-1 E, which can drive the driving shaft to rotate, and will not be described in detail here.

[0030] The servo motor 11 is a prior art, the model is KYDAS96300-1 E, which can drive the rotating shaft 1101 to rotate, and will not be described in detail here.

[0031] The utility model discloses a when needing to test the production pressure sensitive resistance, the staff is connected with the conveying equipment in the factory to the device, then the staff starts drive motor 6, servo motor 11 and hydraulic cylinder 10, and drive motor 6 is rotated to the conveying roller 4 through the drive shaft, and the conveying roller 4 rotation drives the conveying belt 5 to rotate, and the conveying belt 5 rotation is conveyed to the pressure sensitive resistance on the conveying belt 5, and the pressure sensitive resistance is conveyed to the U -shaped groove in the rotary disc 8, servo motor 11 is started at this moment, and is rotated to the rotary disc 8 through the pivot 1101, and the pressure sensitive resistance in the U -shaped groove is rotated to the below of testing equipment (at this time, another U -shaped groove on the rotary disc 8 is rotated 90 degrees along with the rotary disc 8, and is rotated to align with one group of limit board 501),

[0032] At this time, hydraulic cylinder 10 drives testing equipment body 1001 to descend, and the pressure sensitive resistance rotated to the below of testing equipment body 1001 is tested, if the testing equipment body 1001 is inputted to the controller 701 with the signal when testing the unqualified pressure sensitive resistance, and the controller 701 controls electric push rod 12 to start, and electric push rod 12 pushes arc push plate 1201 to move, and the unqualified pressure sensitive resistance in the U -shaped groove is pushed to the collection box 2,

[0033] When testing the qualified pressure sensitive resistance, drive motor 6 (regardless of the pressure sensitive resistance of being tested is unqualified, and drive motor 6 will continue to rotate) continues to drive rotary disc 8 to rotate, and drives the pressure sensitive resistance in the U -shaped groove to rotate, at this time, drive motor 6 drives rotary disc 8 to rotate 180 degrees, and the testing qualified pressure sensitive resistance is rotated to align with another group of limit board 501, at this time, the conveying belt 5 is conveyed to the testing qualified pressure sensitive resistance, and the subsequent testing and screening of the pressure sensitive resistance are as described above.

[0034] The above-mentioned device does not need the staff to place the pressure sensitive resistance in the rotary disc 8, and also does not need to take out the pressure sensitive resistance from the rotary disc 8, and can screen the qualified and unqualified pressure sensitive resistance, saves time and improves the testing efficiency of the pressure sensitive resistance.

[0035] The above-mentioned, only for the preferable specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model discloses the technical range of the utility model, according to the utility model technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A varistor testing device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a conveying assembly, the top of the workbench (1) is fixedly connected to a test bench (7), the top of the test bench (7) is provided with a circular groove, a rotating disk (8) is rotatably connected in the circular groove, the top of the rotating disk (8) is provided with a plurality of U-shaped grooves, the top of the test bench (7) is fixedly connected to an L-shaped mounting plate (9), a servo motor (11) is provided above the test bench (7) and is mounted on one end of the L-shaped mounting plate (9) through a fixing seat, the output end of the servo motor (11) is fixedly connected to a rotating shaft (1101) fixedly connected to the top of the rotating disk (8), and a pushing assembly is provided on the rotating shaft (1101).

2. A varistor testing device according to claim 1, characterized in that: A through slot for a conveying assembly to pass through is provided at one end of the test bench (7), and the conveying assembly comprises two groups of fixed blocks (3) fixedly connected to the top of the workbench (1), and conveying rollers (4) are rotatably connected between each group of fixed blocks (3), and a conveyor belt (5) is connected between the conveying rollers (4).

3. A varistor testing device according to claim 2, characterized in that: A driving motor (6) is mounted on one end of one of the fixed blocks (3) via a mounting seat, and an output end of the driving motor (6) is fixedly connected to a driving shaft fixedly connected to one of the conveying rollers (4).

4. The varistor testing device according to claim 1, characterized in that: A hydraulic cylinder (10) is installed at the top end of the L-shaped mounting plate (9), one end of the hydraulic cylinder (10) passes through the L-shaped mounting plate (9), and one end of the hydraulic cylinder (10) is fixedly connected to a test equipment body (1001).

5. The varistor testing device according to claim 1, characterized in that: The pushing assembly comprises an electric push rod (12) rotatably connected to the surface of a rotating shaft (1101), one end of the electric push rod (12) is fixedly connected to an arc-shaped push plate (1201) that fits the rotating disk (8), and a controller (701) electrically connected to the electric push rod (12) is installed on the top of the test bench (7).

6. The varistor testing device according to claim 2, characterized in that: Two groups of limiting plates (501) are provided on the surface of the conveyor belt (5), one end of the limiting plate (501) is fixedly connected to one end of the test bench (7), a collection box (2) is placed on the top of the workbench (1) and is in contact with one end of the test bench (7), and one end of the collection box (2) is fixedly connected to a handle.

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