CN219201717U

CN219201717U - Test fixture with safeguard function

Info

Publication number: CN219201717U
Application number: CN202320313550.3U
Authority: CN
Inventors: 余信贵; 肖子云
Original assignee: Zhuhai Zicheng Electronics Co ltd
Current assignee: Zhuhai Zicheng Electronics Co ltd
Priority date: 2023-02-25
Filing date: 2023-02-25
Publication date: 2023-06-16
Anticipated expiration: 2033-02-25

Abstract

The utility model discloses a test fixture with a protection function, which relates to the technical field of triode test and aims at solving the problems that the test efficiency is reduced and the use of testers with different heights is inconvenient due to the fact that the conventional triode test fixture is inconvenient for fixing a plurality of triodes at one time. The clamping device is designed, so that a plurality of triodes can be clamped and fixed at one time, and the testing efficiency is improved; the lifting device is designed, so that the use height of the test bench can be flexibly adjusted to facilitate the use of testers with different heights, and the practicability is improved.

Description

Test fixture with safeguard function

Technical Field

The utility model relates to the technical field of triode test, in particular to a test fixture with a protection function.

Background

At present, when testing the triode, generally a black meter pen and a red meter pen on a universal meter are used for testing, and in the testing process, in order to position the triode, protect and guarantee the testing effect, a testing clamp can be used.

Through retrieving, the patent of application number 202220556470.6 discloses a triode test fixture with safeguard function, and it is convenient to press from both sides tightly fixedly to the triode that treats the test, but still can have following problem that needs the improvement:

firstly, the test fixture of the patent is inconvenient for fixing a plurality of triodes at one time, so that a great amount of time is wasted in the process of fixing a great number of triodes, and the test efficiency is reduced;

secondly, the test fixture of above-mentioned patent is also inconvenient in the in-service use highly of adjusting whole support frame, and then inconvenient tester of different heights uses, and is not practical enough.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the test fixture with the protection function, which overcomes the defects of the prior art by designing the clamping device and the lifting device, and effectively solves the problems that the test efficiency is reduced and the use of testers with different heights is inconvenient because the conventional triode test fixture is inconvenient to fix a plurality of triodes at one time.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a test fixture with safeguard function, includes that bottom four corners position all is equipped with the base that the universal wheel was stopped in the area, the top of base is connected with the testboard through elevating gear, and is equipped with clamping device on the testboard, clamping device is including seting up in the slide at testboard top, rotating transmission shaft, the drive assembly of installing in the slide and a plurality of equidistance distribution centering clamping assembly, and elevating gear includes two screw thread elevating components and a manual subassembly of controlling.

Preferably, the driving assembly comprises a servo motor fixedly arranged on the outer wall of the top of the test bench, a driving belt pulley fixedly arranged on an output shaft of the servo motor and a driven belt pulley fixedly arranged on a transmission shaft, and the driving belt pulley and the driven belt pulley are in transmission connection through the same belt;

the centering clamping assembly comprises a bidirectional thread unit arranged on the transmission shaft, two clamping blocks symmetrically screwed at two opposite thread ends of the bidirectional thread unit, and two silica gel cushion blocks fixedly arranged on the outer wall of one side adjacent to the two clamping blocks;

the outer walls of the two clamping blocks are in sliding connection with the inner wall of the slideway, and triodes with the same quantity as the centering clamping components are placed on the test bench.

Through adopting above-mentioned technical scheme, once only place a plurality of triodes in the middle of each centering clamping assembly, later through the synchronous work of drive assembly control all centering clamping assembly, be convenient for once only press from both sides tightly fixedly a plurality of triodes, help improving efficiency of software testing, avoid the triode to appear moving and appear damaging when the test simultaneously, realized the protection effect.

Preferably, the two thread lifting assemblies comprise a fixed cylinder fixedly arranged on the outer wall of the top of the base, a limit opening formed in the top of the fixed cylinder, a threaded rod rotatably arranged on the base, a T-shaped lifting block screwed on the threaded rod and a worm wheel fixedly arranged at the bottom of the threaded rod, the outer wall of the T-shaped lifting block is in sliding connection with the inner wall of the limit opening, and the top outer walls of the two T-shaped lifting blocks are fixedly arranged on the bottom outer wall of the test bench;

the manual control assembly comprises two bearing seats symmetrically and fixedly arranged on the outer wall of the bottom of the base, a rotating shaft rotatably arranged on the two bearing seats, two worms fixedly arranged on the rotating shaft and a hand wheel fixedly arranged on the rotating shaft, and the two worms are sequentially meshed with the two worm gears.

Through adopting above-mentioned technical scheme, control two screw thread lifting unit synchronous work control testboards through manual control subassembly and go up and down the action, and then can carry out nimble regulation in order to make things convenient for the tester of different heights to use to the use height of testboard, improved the practicality.

The beneficial effects of the utility model are as follows:

1. the clamping device is designed, the plurality of triodes are placed in the middle of each centering clamping assembly at one time, and then all centering clamping assemblies are controlled to synchronously work through the driving assembly, so that the plurality of triodes are clamped and fixed at one time conveniently, and the testing efficiency is improved;

2. the lifting device is designed, the two threaded lifting assemblies are controlled by the manual control assembly to synchronously work so as to control the test bench to lift, and then the use height of the test bench can be flexibly adjusted so as to be convenient for testers with different heights to use, so that the practicability is improved.

Drawings

FIG. 1 is a schematic view of the overall three-dimensional structure of the present utility model;

FIG. 2 is a schematic three-dimensional structure of a clamping device according to the present utility model;

FIG. 3 is a schematic three-dimensional structure of two fixed barrels according to the present utility model;

FIG. 4 is a schematic view of the bottom view of the base of the present utility model;

fig. 5 is a schematic three-dimensional structure of a threaded lifting assembly according to the present utility model.

In the figure: 1. a base; 2. a test bench; 3. a slideway; 4. a transmission shaft; 5. a servo motor; 6. a driving pulley; 7. a driven pulley; 8. a bidirectional screw unit; 9. clamping blocks; 10. a triode; 11. a fixed cylinder; 12. a limit opening; 13. a threaded rod; 14. a T-shaped lifting block; 15. a worm wheel; 16. a rotating shaft; 17. a worm; 18. and a hand wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Embodiment 1, referring to fig. 1-2, a test fixture with protection function, comprising a test bench 2 and a clamping device, wherein the clamping device comprises the following components:

slide 3 and transmission shaft 4: the slideway 3 is arranged at the top of the test bench 2, and the transmission shaft 4 is respectively and penetratingly connected with the inner walls of the two sides of the slideway 3 through two bearings;

and a driving assembly: the driving assembly comprises a servo motor 5 fixed on the outer wall of the top of the test bench 2 through bolts, a driving belt pulley 6 fixedly sleeved on an output shaft of the servo motor 5 and a driven belt pulley 7 fixedly sleeved on the transmission shaft 4, and the driving belt pulley 6 and the driven belt pulley 7 are in transmission connection through the same belt;

a plurality of centering clamping components distributed at equal intervals: the centering clamping assembly comprises a bidirectional thread unit 8 arranged on the transmission shaft 4, two clamping blocks 9 symmetrically screwed at two opposite thread ends of the bidirectional thread unit 8, and two silica gel cushion blocks adhered to the outer wall of one side adjacent to the two clamping blocks 9;

the servo motor 5 is connected with a reversing switch through a wire, triodes 10 the same as the centering clamping assemblies in number are placed on the test bench 2, damage to the triodes 10 in the clamping process of the two clamping blocks 9 can be avoided by utilizing the two silica gel cushion blocks, the outer walls of the two clamping blocks 9 are in sliding connection with the inner wall of the slideway 3, and the movement of the two clamping blocks 9 is conveniently limited;

in this embodiment, once only place a plurality of triodes 10 in the middle of each centering clamping assembly, later through the synchronous work of the all centering clamping assembly of drive assembly control, be convenient for once only press from both sides tightly fixedly a plurality of triodes 10, help improving efficiency of software testing, avoid simultaneously that triode 10 appears moving and appear damaging when the test, realized the protection effect.

Example 2, with reference to fig. 1 and 3-5, this example is optimized on the basis of example 1, specifically: the test fixture with the protection function further comprises a base 1 and a lifting device, wherein the lifting device comprises two threaded lifting assemblies and a manual control assembly;

the outer walls of four corners of the bottom of the base 1 are all fixed with universal wheels with brakes through bolts, and the two threaded lifting assemblies are all composed of the following components:

a fixed cylinder 11 and a limit port 12: the fixed cylinder 11 is welded on the outer wall of the top of the base 1, and the limiting opening 12 is formed in the top of the fixed cylinder 11;

threaded rod 13 and T-shaped lifting block 14: the threaded rod 13 is in penetrating connection with the inner wall of the base 1 through a bearing, the T-shaped lifting block 14 is in threaded connection with the threaded rod 13, and the outer wall of the T-shaped lifting block 14 is in sliding connection with the inner wall of the limiting opening 12, so that the movement of the T-shaped lifting block 14 is conveniently limited;

worm wheel 15: the worm wheel 15 is fixedly sleeved at the bottom of the threaded rod 13;

the manual control assembly comprises two bearing seats symmetrically fixed on the outer wall of the bottom of the base 1, a rotating shaft 16 penetrating through the inner walls of the two bearing seats through the two bearings, two worms 17 fixedly sleeved on the rotating shaft 16 and a hand wheel 18 fixed on the rotating shaft 16;

the two worms 17 are meshed with the two worm gears 15 in sequence, and the top outer walls of the two T-shaped lifting blocks 14 are fixed on the bottom outer wall of the test bench 2 through bolts;

in this embodiment, through manual control subassembly control two screw thread lifting unit synchronous work control testboard 2 go on the elevating system, and then can carry out nimble regulation in order to make things convenient for the tester of different heights to use to testboard 2's use height, improved the practicality.

Working principle: when the height adjusting device is used, firstly, the height of the test bench 2 is adjusted according to the height of a tester, namely, the rotating shaft 16 is controlled to rotate through the control hand wheel 18, then the two worms 17 control the two worm gears 15 to rotate, and then under the limit of the two limit ports 12, the two threaded rods 13 rotate to control the two T-shaped lifting blocks 14 to lift, so that the height of the test bench 2 is adjusted finally;

secondly, a plurality of triodes 10 to be detected are placed in each centering clamping assembly, at the moment, the driving belt pulley 6 is controlled to rotate through the output shaft of the servo motor 5, the driven belt pulley 7 is controlled to rotate through the transmission shaft 4 under the transmission action of the belt, then two clamping blocks 9 on each bidirectional thread unit 8 are synchronously centered and close to clamp and fix all the triodes 10 at one time, and then a test pen on a universal meter can be picked up to test all the triodes 10 in sequence.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a test fixture with safeguard function, includes that bottom four corners position all is equipped with base (1) of universal wheel of stopping in the area, its characterized in that, the top of base (1) is connected with testboard (2) through elevating gear, and is equipped with clamping device on testboard (2), clamping device is including seting up slide (3) at testboard (2) top, rotating transmission shaft (4) installed in slide (3), drive assembly and a plurality of equidistance centering clamping assembly that distributes, and elevating gear includes two screw thread elevating assembly and a manual control subassembly.

2. The test fixture with the protection function according to claim 1, wherein the driving assembly comprises a servo motor (5) fixedly arranged on the outer wall of the top of the test bench (2), a driving belt pulley (6) fixedly arranged on an output shaft of the servo motor (5) and a driven belt pulley (7) fixedly arranged on the transmission shaft (4), and the driving belt pulley (6) and the driven belt pulley (7) are in transmission connection through the same belt.

3. The test fixture with the protection function according to claim 1, wherein the centering clamping assembly comprises a bidirectional threaded unit (8) arranged on the transmission shaft (4), two clamping blocks (9) symmetrically screwed on two opposite threaded ends of the bidirectional threaded unit (8), and two silica gel cushion blocks fixedly arranged on the outer walls of one side adjacent to the two clamping blocks (9).

4. The test fixture with the protection function according to claim 1, wherein the two threaded lifting assemblies comprise a fixed cylinder (11) fixedly arranged on the outer wall of the top of the base (1), a limiting opening (12) formed in the top of the fixed cylinder (11), a threaded rod (13) rotatably arranged on the base (1), a T-shaped lifting block (14) screwed on the threaded rod (13) and a worm wheel (15) fixedly arranged at the bottom of the threaded rod (13), the outer wall of the T-shaped lifting block (14) is in sliding connection with the inner wall of the limiting opening (12), and the top outer walls of the two T-shaped lifting blocks (14) are fixedly arranged on the bottom outer wall of the test bench (2).

5. The testing fixture with the protection function according to claim 1, wherein the manual control assembly comprises two bearing seats symmetrically fixed on the outer wall of the bottom of the base (1), a rotating shaft (16) rotatably installed on the two bearing seats, two worms (17) fixedly installed on the rotating shaft (16) and a hand wheel (18) fixedly installed on the rotating shaft (16), and the two worms (17) are sequentially meshed with the two worm wheels (15).

6. A test fixture with protection function according to claim 3, characterized in that the outer walls of the two clamping blocks (9) are both in sliding connection with the inner wall of the slideway (3), and the test bench (2) is provided with triodes (10) the same number as the centering clamping components.