CN201207060Y - General resistance detecting clamp for cylinder battery - Google Patents

Abstract

The utility model relates to a universal cylindrical battery internal resistance detection fixture, which comprises a V-shaped block arranged on a workbench, two probe seats respectively provided with a front probe and a rear probe, and a front probe on the drive probe seat. The needle or the rear probe slides to the driving mechanism of the battery to be tested. There is a position adjustment sleeve on the probe seat, and a position adjustment sleeve is provided between the position adjustment sleeve and the probe seat so that the position adjustment sleeve can move along the V-shaped block relative to the probe seat. The front and rear displacement adjustment mechanism slides in the direction of the inclined plane intersection, and the front probe or the rear probe is fixedly arranged in the positioning sleeve. Through the front and rear displacement adjustment mechanism, the position of the positioning sleeve relative to the probe seat can be adjusted, so that the position of the probe end relative to the battery to be tested along the battery axis can be adjusted, making this internal resistance detection fixture suitable for Cylindrical batteries of different lengths. Furthermore, a height adjustment mechanism can also be provided, so that the internal resistance detection jig is suitable for cylindrical batteries with different diameters. Therefore, the versatility of the fixture is improved, and the manufacturing cost is saved.

Description

Universal Cylindrical Battery Internal Resistance Test Fixture

【Technical field】

The utility model relates to a test device for a cylindrical battery, in particular to an internal resistance detection fixture suitable for various signal cylindrical batteries.

【Background technique】

In the prior art, it is necessary to test the internal resistance of the battery after the cylindrical battery is processed. A special internal resistance detection device is usually used: pull the handle of the toggle clamp by hand, so that the probe of the front probe seat is driven by the toggle clamp to touch the positive and negative poles of the cylindrical battery to be tested placed on the V-shaped block, and then press After the detection button is pressed, the cylindrical battery is detected through the detection circuit, and then the internal resistance value of the battery is displayed on the electronic display device, so as to judge whether the internal resistance value of the cylindrical battery to be tested is qualified. The fixture in this internal resistance detection device includes a V-shaped block fixed on the workbench for placing the battery, a front probe seat and a rear probe seat arranged at both ends of the V-shaped block, and a front probe seat and a rear probe seat The front probe and the rear probe that are in contact with the positive and negative poles of the battery to be tested are respectively arranged on the top of the battery, and the other ends of the front and rear probes are electrically connected to the detection circuit, and can drive the front probe on the front probe seat to slide to the battery to be tested. elbow clamp. Since the position of the V-shaped block of this fixture is fixed and the distance between the front probe base and the rear probe base is not adjustable, it can only be used for one type of cylindrical battery. When other types of batteries need to be tested, due to its diameter and If the length is different, another matching test bench needs to be replaced, which increases the production cost.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a universal cylindrical battery internal resistance detection fixture for the defect that a set of detection devices in the prior art cylindrical battery internal resistance detection fixture can only be applied to one type of battery. It can be applied to different types of cylindrical batteries for internal resistance detection.

The technical scheme adopted by the utility model to solve the technical problem is: to construct a universal cylindrical battery internal resistance detection fixture, including a V-shaped block arranged on the workbench, and two probes respectively equipped with a front probe and a rear probe. The needle holder, the rear probe or the front probe on the drive probe holder slides to the driving mechanism of the battery to be tested, the probe holder is provided with a positioning sleeve, and the front probe or the rear probe is fixedly arranged on the In the position-adjusting sleeve, a front-rear displacement adjustment mechanism is provided between the position-adjusting sleeve and the probe seat so that the position-adjusting sleeve can slide relative to the probe seat along the intersection line of the two slopes of the V-shaped block.

In the universal cylindrical battery internal resistance detection jig described in the utility model, the front and rear displacement adjustment mechanism includes a through hole arranged on the probe seat and the axis is along the intersection line of the two slopes of the V-shaped block. The positioning piece is fixed in the through hole.

In the universal cylindrical battery internal resistance testing jig described in the present utility model, the positioning member is a locking screw arranged on the wall of the through hole along the radial direction of the through hole.

In the universal cylindrical battery internal resistance detection fixture described in the present utility model, the front and rear displacement adjustment mechanism is provided on the probe seat along the chute along the direction of the intersection of the two slopes of the V-shaped block, and is arranged on the adjustment sleeve. The slide rail at the bottom is matched with the chute, and the adjusting sleeve is fixed on the chute through a positioning piece.

In the universal cylindrical battery internal resistance detection jig described in the utility model, a height adjustment mechanism is provided between the V-shaped block and the workbench.

In the universal cylindrical battery internal resistance detection jig described in the utility model, the height adjustment mechanism includes an adjustment screw, the threaded part of the adjustment screw is threaded with the workbench in the vertical direction, and its head can be rotatably embedded At the bottom of the V-shaped block.

In the universal cylindrical battery internal resistance detection jig described in the utility model, a longitudinal displacement adjustment mechanism along the direction perpendicular to the intersection line of the two slopes of the V-shaped block is provided between the probe base and the workbench.

In the universal cylindrical battery internal resistance detection jig described in the present utility model, the longitudinal displacement adjustment mechanism includes a longitudinal chute arranged along the direction perpendicular to the intersection line of the two slopes of the V-shaped block, and a sledge arranged at the bottom of the probe base. Rails, locking screws set between the probe holder and the workbench.

The universal cylindrical battery internal resistance detection jig implementing the utility model has the following beneficial effects: by setting the position adjustment sleeve on the probe base, and making the position adjustment sleeve slidable along the direction of the intersection line of the two slopes of the V-shaped block; When the cylindrical battery to be tested is placed on the V-shaped block, its axis is parallel to the intersection line of the inclined surface of the V-shaped block, so that the adjusting sleeve can slide along the axial direction of the cylindrical battery to be tested; at the same time, the probe is fixed on the adjusting sleeve Inside, when testing the internal resistance of cylindrical batteries of different lengths, the position of the adjusting sleeve can be adjusted so that the probe can just touch the positive pole (or negative pole) of the battery after the elbow clamp clamps the battery. When it is necessary to detect the internal resistance of other types of batteries, it is only necessary to adjust the adjustment sleeve to a suitable position to perform internal resistance detection on batteries of different lengths, so that this fixture can be applied to various types of cylindrical batteries. Good versatility.

Furthermore, a height adjustment mechanism is set between the V-shaped block and the workbench, so that the height of the workbench relative to the workbench can be adjusted, so that the fixture can also be used for internal resistance testing of cylindrical batteries with different diameters, The versatility of this fixture is further improved.

The utility model will be further described below in conjunction with accompanying drawings and embodiments.

【Description of drawings】

Fig. 1 is a three-dimensional structural schematic diagram of a universal cylindrical battery internal resistance detection fixture described in the present invention;

Fig. 2 is the front view of the universal cylindrical battery internal resistance detection fixture described in the utility model;

Fig. 3 is a cross-sectional view along line A-A of Fig. 1 .

【Detailed ways】

As shown in Figures 1, 2, and 3, in the preferred embodiment of the universal cylindrical battery internal resistance detection fixture described in the present invention, it includes a workbench 1 and a V-shaped block 2, a probe holder 3, and a workbench 1. The probe base 4, the driving mechanism for driving the front probe base 3, the front and rear displacement adjustment mechanism, and the height adjustment mechanism. Among them, the front and rear probe bases 3 and 4 are respectively provided with a front probe 5 and a rear probe 6, and one end of the front and rear probes 5 and 6 is in contact with the positive or negative pole of the cylindrical battery 7 to be tested, and the other end passes through the The electric lead is electrically connected with the internal resistance detection circuit. The driving mechanism can be various driving mechanisms arranged at the end of the V-shaped block for driving the front probe holder 3 to slide towards the V-shaped block 2. This preferred embodiment is an toggle clamp 8, which can make the front probe holder 3 3 Slide toward the V-shaped block 2 along the direction of the intersection of the two slopes of the V-shaped block 2, that is, when the battery to be tested 7 is placed in the V-shaped groove 9 of the V-shaped block, it can slide along the axis direction of the battery to be tested 7.

As shown in FIG. 2 , a positioning sleeve 10 is provided at the end corresponding to the V-shaped block on the rear probe base, and the positioning sleeve 10 is slidable relative to the rear probe base 4 through a front and rear displacement adjustment mechanism. Specifically, the front and rear displacement adjustment mechanism includes a through hole 11 arranged at the axial position of the battery to be tested 7 in the corresponding V-shaped block 2 on the rear probe holder 4, and the axis of the through hole 11 is at the same distance as the V-shaped block 2. The lines of intersection of the inclined planes are parallel, that is, parallel to the axis of the battery to be tested 7; Sliding; a locking screw 12 is also provided on the hole wall of the top side of the through hole 11, and the tail of the locking screw 12 can be stretched into the through hole 11 and pressed on the outer side wall of the adjusting sleeve 10, so that The adjusting sleeve 10 can be positioned in the through hole; and the head of the locking screw 12 extends outside the rear probe base 4 to facilitate the adjustment of the locking screw 12 outside the rear probe base 4 . A probe hole 13 matching the rear probe 6 and used for embedding the rear probe 6 is provided inside the adjusting sleeve 10 , so that the rear probe 6 can pass through the probe hole 13 and be fixed therein. Before performing internal resistance detection, put the battery 7 to be tested into the V-shaped groove 9 of the V-shaped block, and turn the handle of the elbow clamp 8, so that the front probe 5 on the front probe seat is just in line with the battery to be tested. 7 positive (or negative) contact; then loosen the locking screw 12, and slide the adjustment sleeve 10 to the battery 7 to be tested, so that the end of the rear probe 6 in the adjustment sleeve is just in line with the negative electrode of the battery 7 to be tested. (or positive) contact, thereby adjusting the position of the adjusting sleeve 10 relative to the through hole 11; then tighten the locking screw 12, and fix the adjusting sleeve 10 in the through hole 11 to complete the debugging of the fixture; during mass production , the battery 7 to be tested can be replaced by simply turning the handle of the elbow clamp 8, the operation during debugging and testing is very simple, and the work efficiency is high. When it is necessary to test the internal resistance of other types of batteries, it is only necessary to loosen the locking screw 12, and adjust the relative position between the adjusting sleeve 10 and the through hole 11, so that the rear probe 6 on the adjusting sleeve can be just in line with the The negative electrode (or positive electrode) of the battery 7 to be tested can only be in contact, and is suitable for batteries of different lengths, and has high versatility, thereby saving production costs. In this preferred embodiment, the locking screw 12 can also be other positioning parts, as long as the adjusting sleeve 10 can be fixed in the through hole 11 after sliding adjustment. At the same time, this kind of adjustment sleeve 10 can also be set on the front probe base 5, so as to adjust the position of the front probe 5 relative to the front probe base 3, so that the length range of the battery that the clamp can adapt to is larger, and it is universal Sex is better.

As shown in FIG. 3 , in this preferred embodiment, a height adjustment mechanism is provided between the V-shaped block 2 and the worktable 1 for adjusting the height position of the V-shaped block 2 relative to the worktable 1 . Specifically, the height adjustment mechanism includes an adjustment screw 14, the upper surface of the workbench 1 is provided with a threaded hole 15 that matches the threaded portion of the adjustment screw 14, and the bottom of the V-shaped block 2 is provided with a screw hole 15 that matches the head of the adjustment screw 14. The matched groove 16 also includes a baffle 17 for embedding the head of the adjusting screw 14 in the groove 16 , so that the adjusting screw 14 can lift the V-shaped block 2 and rotate relative to the V-shaped block 2 . A communicating hole 18 communicating with the groove 16 is set at the groove bottom of the V-shaped groove 9 of the V-shaped block, so that tools such as a screwdriver can be used to pass through the communicating hole 18 to rotate the adjusting screw 14 for convenient adjustment. By rotating the adjusting screw 14, the height position of the V-shaped block 2 relative to the workbench 1 can be adjusted, so that the axes of batteries with different diameters can be moved to the vicinity of the probe, which is convenient for detection, so that the internal resistance detection fixture can also Adapt to batteries of different diameters and have better versatility. Two or more adjustment screws 14 between the V-shaped block 2 and the workbench 1 are preferably arranged to ensure that the V-shaped block 2 will not shake during use.

In the above preferred embodiment, the front and rear displacement adjustment mechanism between the positioning sleeve 10 and the probe holders 3 and 4 can also be a sliding rail structure. Specifically, a chute along the intersection direction of the two slopes of the V-shaped block can be set on the upper surface of the probe base 3, 4, and a slide rail matching the chute can be set at the bottom of the adjustment sleeve, and the slide rail can Sliding in the groove makes the positioning sleeve also slidable relative to the probe seat, that is, the position of the probe relative to the battery to be tested in the axial direction can be adjusted, so that it is also applicable to batteries of different lengths for internal resistance testing.

In the preferred embodiment above, a longitudinal displacement adjustment mechanism can also be set between the probe bases 3, 4 and the worktable 1, so that the probe bases 3, 4 can be moved along the direction perpendicular to the intersection line of the two slopes of the V-shaped block Moving, with the height adjustment mechanism, the probes 5 and 6 can be aligned with the positive and negative poles of the battery 7 to be tested. Specifically, the longitudinal displacement adjustment mechanism may be a longitudinal adjustment screw arranged between the probe base and the worktable, the threaded part of the adjustment screw is threadedly connected with the probe base, and its head is embedded in the worktable; The screw can adjust the position of the probe seat relative to the workbench, so as to achieve the purpose of longitudinal adjustment.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (8)

1, a kind of general cylindrical battery internal resistance detects anchor clamps, comprise the vee-block that is arranged on the worktable, two driving mechanisms that the probe base that is respectively equipped with preceding probe and back probe, the back probe on the driving probe base or preceding probe slide to mesuring battary, it is characterized in that, described probe base is provided with the positioning cover, probe or back probe stationary are arranged in the described positioning cover before described, are provided with the anteroposterior position transposition complete machine structure that makes that the positioning cover can slide along vee-block two inclined-plane intersection directions with respect to probe base between described positioning cover and the probe base.

2, general cylindrical battery internal resistance according to claim 1 detects anchor clamps, it is characterized in that, described anteroposterior position transposition complete machine structure comprise be arranged on the probe base and axis along the through hole of vee-block two inclined-plane intersection directions, described positioning cover is fixed in the described through hole by keeper.

3, general cylindrical battery internal resistance according to claim 2 detects anchor clamps, it is characterized in that, described keeper is for radially being arranged on the lock-screw on the described through hole hole wall along described through hole.

4, general cylindrical battery internal resistance according to claim 1 detects anchor clamps, it is characterized in that, described anteroposterior position transposition complete machine structure bag is arranged on the chute along vee-block two inclined-plane intersection directions on the probe base, be arranged on described positioning cover bottom, with the slide rail that described chute is complementary, described positioning cover is fixed on the described chute by keeper.

5, detect anchor clamps according to each described general cylindrical battery internal resistance in the claim 1 to 4, it is characterized in that, be provided with height control mechanism between described vee-block and the worktable.

6, general cylindrical battery internal resistance according to claim 5 detects anchor clamps, it is characterized in that, described height control mechanism comprises the adjustment screw, and the threaded portion in the vertical direction of described adjustment screw is threaded with worktable, the rotatable bottom that is embedded at vee-block of its head.

7, general cylindrical battery internal resistance according to claim 5 detects anchor clamps, it is characterized in that, is provided with between described probe base and the worktable along the length travel adjusting mechanism of vertical described vee-block two inclined-plane intersection directions.

8, general cylindrical battery internal resistance according to claim 7 detects anchor clamps, it is characterized in that described length travel adjusting mechanism comprises along the slide rail of vertical chute of vertical described vee-block two inclined-plane intersection direction settings, the setting of described probe base bottom, is arranged on the lock-screw between probe base and the worktable.

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