Detection tool for frequency converter production

Abstract

The utility model discloses a detection tool for frequency converter production, which relates to the technical field of converter detection and comprises a workbench, a resistance tester arranged on the rear side of the top of the workbench and a detection mechanism arranged on the front side of the top of the workbench. The detection mechanism comprises a fixed seat fixedly connected to the front side of the top of the workbench, a sliding seat arranged in the fixed seat, an adjusting unit arranged on the outer side of the sliding seat, and a connecting unit arranged in the sliding seat. The adjusting unit comprises a fixing plate arranged at the bottom of the outer surface of the sliding seat, a positioning part arranged in the fixing plate and a positioning groove formed in the inner side wall of the fixing seat. The positioning part comprises a containing groove formed in the fixing plate and one end of an extrusion piece fixedly connected to the side wall of the containing groove. According to the detection tool for production of the frequency converter, through the arrangement of the detection mechanism, the resistance test can be conveniently carried out on the frequency converter, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of converter detection, in particular to a detection tool for frequency converter production. Background Art

[0002] A voltage-to-frequency converter is a device that realizes analog-to-digital conversion, converting analog voltage into a pulse signal. The frequency of the output pulse signal is proportional to the input voltage. Voltage-to-frequency conversion can also be called volt-to-frequency conversion.

[0003] After production, the voltage-frequency converter needs to undergo resistance testing to determine whether the finished product is qualified. When performing resistance testing on the voltage-frequency converter, it is necessary to use the clamps of the resistance tester to clamp each pin of the voltage-frequency converter separately, and then operate the resistance tester for testing. This process requires the clamps of the resistance tester to be coordinated with the pins of the voltage-frequency converter for loading and unloading one by one. In view of the above-mentioned voltage-frequency converter resistance testing method and the inconvenience of operation during the testing process, we propose a testing tool for frequency converter production. Utility Model Content

[0004] The main purpose of the utility model is to provide a testing tool for frequency converter production. By setting up a testing mechanism, it is possible to solve the problem that when performing resistance testing on a voltage-frequency converter, the clamp of a resistance tester needs to be used to clamp each pin of the voltage-frequency converter respectively, and then the resistance tester needs to be operated to perform testing. This process requires the clamp of the resistance tester to be matched with the pins of the voltage-frequency converter for loading and unloading one by one, which is aimed at the problem of the inconvenience in the resistance testing method of the voltage-frequency converter and the operation during the testing process.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A detection tool for frequency converter production, comprising a workbench, a resistance tester arranged on the rear side of the top of the workbench, and further comprising:

[0007] A detection mechanism, the detection mechanism is arranged on the front side of the top of the workbench;

[0008] The detection mechanism includes a fixed seat fixedly connected to the front side of the top of the workbench, a slide seat arranged inside the fixed seat, an adjustment unit arranged outside the slide seat, and a connection unit arranged inside the slide seat;

[0009] The adjusting unit comprises a fixing plate arranged at the bottom of the outer surface of the sliding seat, a positioning part arranged inside the fixing plate, and a positioning groove arranged on the inner side wall of the fixing seat.

[0010] Preferably, there are multiple groups of the slide seats, and each group of the slide seats is arranged inside the fixed seat through an adjustment unit.

[0011] Preferably, the positioning part includes a receiving groove arranged inside the fixed plate, one end of an extruded piece fixedly connected to the side wall of the receiving groove, and one end of a positioning block fixedly connected to the other end of the extruded piece, the other end of the positioning block is adapted to the size of the positioning groove, the top of the positioning block is threadedly connected to a screw rod, and the bottom of the receiving groove is provided with a threaded groove adapted to the size of the bottom end of the screw rod.

[0012] Preferably, there are two groups of the positioning parts, and the two groups of the positioning parts are arranged relatively on the outside of the slide seat.

[0013] Preferably, the connecting unit comprises a connecting column mounted on a side wall of the sliding seat, a groove arranged on a top surface of the connecting column, and a clip arranged relatively inside the groove.

[0014] Preferably, the two clips are both mounted inside the groove via a reset portion;

[0015] The reset part includes a fixed cylinder installed on the opposite side walls of the groove, a rotating rod movably arranged between the two fixed cylinders, and a reset member arranged between the rotating rod surface and the inner wall of the fixed cylinder. One end of the clip is installed on the surface of the rotating rod.

[0016] Preferably, the output end of the resistance tester is provided with one end of a wire, and the other end of the wire is connected to a connecting column.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] In the utility model, the detection mechanism is arranged, the positioning block is driven to retract into the storage groove by pulling the screw rod, and then the screw rod is rotated to make the bottom end of the positioning block engage with the thread groove at the bottom of the storage groove, so as to limit the positioning block. According to the above steps, the positioning blocks on multiple slides are limited, and then the slide is slid to slide inside the fixed seat to adjust the distance between two adjacent slides to adapt to the specifications of the frequency converter, and the screw rod is rotated in the opposite direction to separate the bottom end of the positioning block from the thread groove, so as to release the limit of the positioning block, and the positioning block is pushed to slide along the inside of the storage groove under the elastic extrusion of the extrusion piece, so that one end of the positioning block is engaged with the positioning groove, so as to limit and fix the slide, place the frequency converter on the top of the slide, and insert the pin of the frequency converter into the through-port of the slide, the pin end of the frequency converter will squeeze the two adjacent clips to make them rotate to both sides, and under the resetting action of the resetting piece, the two clips are closely fitted with the pins of the frequency converter, so as to realize the electrical connection between the frequency converter and the resistance tester, and then the resistance tester can be controlled to detect, so as to facilitate the resistance test of the frequency converter and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0022] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0023] Figure 5 For this utility model Figure 3 The enlarged structural diagram at C in the middle;

[0024] Figure 6 It is a schematic diagram of the planar structure of the reset part of the utility model.

[0025] In the figure:

[0026] Workbench;

[0027] Resistance tester; 21. Wire;

[0028] Detection mechanism; 31. fixed seat; 32. sliding seat; 33. adjustment unit; 331. fixed plate; 332. positioning part; 3321. extrusion piece; 3322. positioning block; 3323. screw rod; 333. positioning groove; 34. connecting unit; 341. connecting column; 342. clip; 343. reset part; 3431. fixed cylinder; 3432. rotating rod; 3433. reset piece. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Example: Figure 1-6 As shown, a testing tool for frequency converter production includes a workbench 1, a resistance tester 2 arranged on the top rear side of the workbench 1, and also includes:

[0031] The detection mechanism 3 is arranged on the top front side of the workbench 1;

[0032] The detection mechanism 3 includes a fixed seat 31 fixedly connected to the front side of the top of the workbench 1, a slide seat 32 arranged inside the fixed seat 31, an adjustment unit 33 arranged outside the slide seat 32, and a connection unit 34 arranged inside the slide seat 32. Preferably, a scale line is arranged on the inner side wall of the fixed seat 31;

[0033] The adjusting unit 33 includes a fixing plate 331 disposed at the bottom of the outer surface of the sliding seat 32 , a positioning portion 332 disposed inside the fixing plate 331 , and a positioning groove 333 disposed on the inner side wall of the fixing seat 31 .

[0034] There are multiple groups of slides 32, and each group of slides 32 is arranged inside the fixed seat 31 through the adjustment unit 33. Preferably, the number of slides 32 is the same as the number of pins of the frequency converter, and a through hole for inserting the pins of the frequency converter is opened on the top of the slide 32.

[0035] The positioning part 332 includes a receiving groove arranged inside the fixed plate 331, one end of an extrusion piece 3321 fixedly connected to the side wall of the receiving groove, and one end of a positioning block 3322 fixedly connected to the other end of the extrusion piece 3321, the other end of the positioning block 3322 is adapted to the size of the positioning groove 333, the top of the positioning block 3322 is threadedly connected with a screw rod 3323, and the bottom of the receiving groove is provided with a threaded groove adapted to the size of the bottom end of the screw rod 3323. Preferably, the extrusion piece 3321 is an extrusion spring, and the position of the positioning block 3322 is limited by the cooperation of the screw rod 3323 and the threaded groove.

[0036] There are two groups of positioning portions 332 , and the two groups of positioning portions 332 are disposed opposite to each other at the outer sides of the slide seat 32 .

[0037] The connecting unit 34 includes a connecting column 341 installed on the side wall of the slide seat 32, a groove arranged on the top surface of the connecting column 341, and a clip 342 arranged inside the groove. Preferably, the connecting column 341 and the clip 342 are both made of conductive material.

[0038] Both clips 342 are installed inside the groove through the reset portion 343;

[0039] The reset part 343 includes a fixed cylinder 3431 installed on the opposite side walls of the groove, a rotating rod 3432 movably arranged between the two fixed cylinders 3431, and a reset member 3433 arranged between the surface of the rotating rod 3432 and the inner wall of the fixed cylinder 3431. One end of the clip 342 is installed on the surface of the rotating rod 3432. Preferably, the reset member 3433 is a coil spring and the rotating rod 3432 is made of conductive material.

[0040] The output end of the resistance tester 2 is provided with one end of a wire 21 , and the other end of the wire 21 is connected to the connection post 341 . Preferably, the connection between the wire 21 and the connection post 341 is an electrical connection.

[0041] When the frequency converter needs to be tested, first pull the screw 3323 to drive the positioning block 3322 to retract into the storage groove, then rotate the screw 3323 to make its bottom end engage with the threaded groove at the bottom of the storage groove, so as to limit the positioning block 3322. According to the above steps, limit the positioning blocks 3322 on multiple slides 32, and then slide the slide 32 to make it slide inside the fixed seat 31 to adjust the distance between two adjacent slides 32 to adapt to the specifications of the frequency converter. Then, rotate the screw 3323 in the opposite direction to separate its bottom end from the threaded groove, so as to release the limit of the positioning block 3322. The elastic squeezing action of the component 3321 pushes the positioning block 3322 to slide along the inside of the storage groove, so that one end of the positioning block 3322 engages with the positioning groove 333, thereby limiting and fixing the slide 32, placing the frequency converter on the top of the slide 32, and inserting the pins of the frequency converter into the through opening of the slide 32. The ends of the pins of the frequency converter will squeeze the two adjacent clips 342 to rotate them to both sides, and under the resetting action of the resetting component 3433, the two clips 342 are tightly fitted with the pins of the frequency converter, thereby realizing the electrical connection between the frequency converter and the resistance tester 2, and then the resistance tester 2 can be controlled for detection.

Claims

1. A testing tool for frequency converter production, comprising a workbench (1), and a resistance tester (2) arranged on the top rear side of the workbench (1), characterized in that: Also includes: A detection mechanism (3), wherein the detection mechanism (3) is arranged on the front side of the top of the workbench (1); The detection mechanism (3) comprises a fixed seat (31) fixedly connected to the front side of the top of the workbench (1), a sliding seat (32) arranged inside the fixed seat (31), an adjustment unit (33) arranged outside the sliding seat (32), and a connection unit (34) arranged inside the sliding seat (32); The adjustment unit (33) comprises a fixing plate (331) arranged at the bottom of the outer surface of the sliding seat (32), a positioning portion (332) arranged inside the fixing plate (331), and a positioning groove (333) arranged on the inner side wall of the fixing seat (31).

2. The frequency converter production testing tool according to claim 1, characterized in that: There are multiple groups of the sliding seats (32), and each group of the sliding seats (32) is arranged inside the fixed seat (31) via an adjustment unit (33).

3. The frequency converter production testing tool according to claim 2, characterized in that: The positioning portion (332) comprises a receiving groove arranged inside the fixing plate (331), one end of an extrusion piece (3321) fixedly connected to the side wall of the receiving groove, and one end of a positioning block (3322) fixedly connected to the other end of the extrusion piece (3321), the other end of the positioning block (3322) being adapted to the size of the positioning groove (333), the top of the positioning block (3322) being threadedly connected to a screw rod (3323), and the bottom of the receiving groove being provided with a threaded groove adapted to the size of the bottom end of the screw rod (3323).

4. The frequency converter production testing tool according to claim 3, characterized in that: There are two groups of the positioning parts (332), and the two groups of the positioning parts (332) are arranged relatively on the outside of the slide seat (32).

5. The frequency converter production testing tool according to claim 4, characterized in that: The connection unit (34) comprises a connection column (341) mounted on the side wall of the slide seat (32), a groove arranged on the top surface of the connection column (341), and a clip (342) arranged inside the groove.

6. The frequency converter production testing tool according to claim 5, characterized in that: The two clips (342) are both installed inside the groove via a reset portion (343); The reset portion (343) comprises a fixed cylinder (3431) mounted on opposite side walls of the groove, a rotating rod (3432) movably arranged between the two fixed cylinders (3431), and a reset member (3433) arranged between the surface of the rotating rod (3432) and the inner wall of the fixed cylinder (3431); one end of the clip (342) is mounted on the surface of the rotating rod (3432).

7. The frequency converter production testing tool according to claim 6, characterized in that: The output end of the resistance tester (2) is provided with one end of a wire (21), and the other end of the wire (21) is connected to a connecting column (341).

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