Square battery detection clamp

Abstract

The utility model discloses a square battery detection clamp comprising a base plate used for placing a square battery to be detected, the base plate is provided with a support, and the support is provided with a guide rail structure and a fixed rack; a sliding block is arranged on the guide rail structure, so that the sliding block can slide in the direction perpendicular to the plate surface of the bottom plate; a locking rack, a push-pull type quick clamp and a guide rod structure are arranged on the sliding block; the locking rack can be meshed with the fixed rack so as to limit the sliding block to slide on the guide rail structure; a sliding plate is arranged on the guide rod structure and can slide in the direction perpendicular to the plate face of the bottom plate. Two spring probes are arranged on the sliding plate; the push-pull type quick clamp is used for pushing the sliding plate to reciprocate on the guide rod structure. During detection, the square battery to be detected is vertically placed on the bottom plate, and the spring probes can be manually aligned. And the spring probe can be adjusted twice through the guide rail structure and the guide rod structure, large-range adjustment can be rapidly completed, the accuracy is high, operation is simple, time and labor are saved, and the detection efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of square battery detection, in particular to a square battery detection fixture. Background Art

[0002] Square batteries are generally aluminum or steel shells. Domestic battery manufacturers basically use square aluminum shell batteries with higher battery density. Compared with round batteries, they have many advantages, such as high space utilization and higher energy density of square batteries; high structural strength and good ability to withstand mechanical loads. Therefore, square batteries are widely used in the field of power batteries.

[0003] In actual production, it is usually necessary to collect and test the current and voltage of square batteries. For example, the specification of Chinese utility model patent CN2814435Y discloses a square battery testing fixture, including a base, a block arranged on the base, an adjustment device arranged at one end of the block on the base, and a detection probe; when testing, the square battery is turned upside down, and the height of the detection probe can be adjusted through the adjustment device to adapt to batteries of different thicknesses, and the relative position of the block and the adjustment device can also be adjusted to adapt to batteries of different widths. Its disadvantage is that it needs to be adjusted and clamped in two directions of width and thickness of the square battery, which is cumbersome to operate; and for super-large square batteries, the required adjustment amount is large, and the adjustment process of the fixture through threaded transmission is slow, time-consuming and labor-intensive. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a square battery detection fixture, which is simple to operate in adjusting and clamping the square battery, saves time and effort, and is particularly suitable for extra-large square batteries.

[0005] In order to solve the above technical problems, the utility model provides a square battery testing fixture, comprising a bottom plate for placing the square battery to be tested, a bracket is arranged on the bottom plate, a guide rail structure and a fixed rack are arranged on the bracket; a slider is arranged on the guide rail structure, so that the slider can slide in a direction perpendicular to the bottom plate surface;

[0006] The slider is provided with a locking rack, a push-pull quick clamp and a guide rod structure; the locking rack can engage with the fixed rack to limit the sliding of the slider on the guide rail structure; the guide rod structure is provided with a slide plate so that the slide plate can slide in a direction perpendicular to the bottom plate surface; the slide plate is provided with two spring probes; the push-pull quick clamp is used to push the slide plate to move back and forth on the guide rod structure so that the test end face of the spring probe can correspond to and fit with the end face of the pole of the square battery to be tested.

[0007] In the above-mentioned square battery detection fixture, the square battery to be tested is placed vertically on the bottom plate during detection, and the position can be adjusted manually. Therefore, the spring probe for detection can be manually aligned, so there is no need to adjust from the thickness direction of the square battery, and only from the width direction, reducing the adjustment and clamping operation steps. In addition, the position of the spring probe can be adjusted twice through the guide rail structure and the guide rod structure. The first time, after releasing the engagement between the fixed rack and the locking rack, the position of the slider can be easily and quickly adjusted up and down manually over a large range, that is, the adjustment of the spring probe detection position with a large adjustment amount can be completed quickly; the second time, a push-pull quick clamp is used to make a small range adjustment, so that the test end face of the detection spring probe is directly facing and pressed against the end face of the pole, and the two adjustments cooperate with each other to fully ensure the clamping quality and efficiency. In short, the detection fixture is simple to operate, saves time and effort, and has high detection efficiency.

[0008] Preferably, the test end face of the spring probe is parallel to and faces the bottom plate, and the position at which the spring probe is fixed on the slide plate is adjustable, so that the distance between the two spring probes is adjustable, which is suitable for square batteries with different pole spacings.

[0009] Preferably, the bottom plate is provided with scale lines, and the scale lines are used as a reference for manually placing the square battery to be tested, thereby improving the placement accuracy and speed.

[0010] Furthermore, the bracket is a rectangular frame structure, which is vertically fixed on the top surface of the base plate; the guide rail structure and the fixed rack are arranged on one frame surface of the bracket.

[0011] Furthermore, the short frame of the bracket is fitted and fixed to the surface of the bottom plate; and a rib is provided between the two sides of the bracket and the bottom plate respectively.

[0012] Furthermore, the guide rail structure is composed of two cylindrical linear guide rails that are spaced apart, and the cylindrical linear guide rails are arranged perpendicular to the surface of the base plate.

[0013] Preferably, a third guide rod is further provided on the bracket, and the third guide rod is parallel to the cylindrical linear guide rail and is used to guide the sliding of the slider.

[0014] Furthermore, the fixed rack is arranged along the sliding direction of the slider.

[0015] Preferably, the fixed rack is arranged between two cylindrical linear guide rails. The fixed rack is a spur rack.

[0016] Furthermore, a support rod is respectively arranged on the top surface and the bottom surface of the slider; the two support rods are arranged opposite to each other, the rod bodies both extend out of the slider body, and a guide rod is respectively arranged between the corresponding ends; the guide rods are arranged along the sliding direction of the slider, and the two guide rods constitute the guide rod structure.

[0017] Furthermore, the slide plate is in the shape of a concave plate, which is arranged on the side of the slider away from the guide rail structure, and the plate surface is arranged parallel to and opposite to the base plate; the concave plate ends of the slide plate are respectively slidably arranged on the guide rods, and the spring probe and the push rod end of the push-pull quick clamp are fixed to the bottom of the concave plate.

[0018] The push rod end of the push-pull quick clamp is fixedly connected to the slide plate and is used to push the slide plate to move along the guide rod structure.

[0019] Furthermore, a rotating shaft is rotatably provided on the slider, and the locking rack is provided on the rotating shaft, so that the locking rack is rotatably provided on the slider, and by rotating the locking rack, the locking rack can be engaged or disengaged with the fixed rack, and the sliding of the slider is restricted when engaged, and the restriction on the sliding of the slider is released when disengaged.

[0020] Furthermore, a limit block is provided on the sliding block, and a limit arc hole is provided on the limit block, and the limit arc hole is used to limit the rotatable angle of the locking rack.

[0021] Furthermore, a limiting rod is provided on the locking rack, and the limiting rod passes through the limiting arc hole from the bottom and can move from one end of the limiting arc hole to the other end as the locking rack rotates.

[0022] In summary, by using the above-mentioned square battery testing fixture, the adjustment and clamping of square batteries is simple, time-saving and labor-saving, and is especially suitable for extra-large square batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 This is a schematic diagram of placing a square battery to be tested in the square battery testing fixture of the utility model.

[0025] Figure 2 This is a structural diagram of a square battery testing fixture of the present utility model.

[0026] Figure 3 This is a structural diagram of the bracket of the square battery testing fixture of the present utility model.

[0027] Figure 4 This is a structural diagram of a slider of a square battery testing fixture of the present utility model.

[0028] Figure 5 It is a schematic diagram of the meshing structure of the fixed rack and the locking rack of the square battery testing fixture of the utility model.

[0029] In the figure, 1, bottom plate; 2, guide rail structure; 3, fixed rack; 4, slider; 5, locking rack; 6, push-pull quick clamp; 7, spring probe; 8, square battery to be tested; 9, bracket; 10, slide plate; 11, support rod; 12, limit rod; 13, rotating shaft; 14, limit block; 15, limit arc hole; 16, guide rod structure; 17, rib plate; 18, third guide rod; 19, first connecting block; 20, second connecting block. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation modes is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0031] Example 1

[0032] Figure 1-5 The utility model shows a square battery testing fixture. Figure 1 and Figure 2 As shown, the square battery detection fixture includes a base plate 1 for placing a square battery 8 to be tested, a bracket 9 is arranged on the base plate 1, and a guide rail structure 2 and a fixed rack 3 are arranged on the bracket 9; a slider 4 is arranged on the guide rail structure 2, so that the slider 4 can slide in a direction perpendicular to the surface of the base plate 1; the slider 4 is provided with a locking rack 5, a push-pull quick clamp 6 and a guide rod structure 16; the locking rack 5 can engage with the fixed rack 3, thereby limiting the sliding of the slider 4 on the guide rail structure 2; a slide plate 10 is arranged on the guide rod structure 16, so that the slide plate 10 can slide in a direction perpendicular to the surface of the base plate 1; two spring probes 7 are arranged on the slide plate 10; the push-pull quick clamp 6 is used to push the slide plate 10 to move back and forth on the guide rod structure 16, so that the test end face of the spring probe 7 can correspond to and fit with the pole end face of the square battery 8 to be tested.

[0033] It should be noted that the vertical placement of the square battery 8 to be tested refers to the following: Figure 1 As shown, the square battery is placed vertically in the width direction with the pole on top. Due to the rectangular shape of the square battery itself, it has a certain stability when placed vertically. Moreover, the square battery testing fixture presses and clamps the square battery in the vertical direction, which will not cause the square battery 8 to be tested to fall over. Therefore, it is only clamped and positioned in the width direction, and the positioning in the thickness and length directions is abandoned, which does not affect the battery positioning stability during testing.

[0034] In some embodiments, the test end face of the spring probe 7 is parallel to the bottom plate 1, and the position of the spring probe 7 fixed on the slide plate 10 is adjustable, so that the distance between the two spring probes 7 is adjustable, which is suitable for square batteries with different pole spacings. There are many ways to achieve the adjustable distance between the spring probes 7, such as Figure 2 As shown, by opening a long hole on the slide plate 10, the spring probe 7 has a one-dimensional degree of freedom along the direction of the long hole, and the spacing can be adjusted by manual movement.

[0035] In some embodiments, scale lines are provided on the bottom plate 1, and the scale lines are used as a reference for manually placing the square battery 8 to be tested, thereby improving the placement accuracy and speed. Figure 2 As shown, the scale line can be a cross-shaped scale line, the center of the cross is aligned with the center of the interval between the two spring probes 7, and a cross side is aligned with the line connecting the centers of the two spring probes 7.

[0036] In certain embodiments, such as Figure 3 As shown, the bracket 9 is a rectangular frame structure, which is vertically fixed on the top surface of the bottom plate 1; a guide rail structure 2 and a fixed rack 3 are arranged on one frame surface of the bracket 9. The bracket 9 serves as a supporting structure, and the rectangular frame structure provides a larger installation surface, which is convenient for installing components.

[0037] In some embodiments, the short frame of the bracket 9 is fitted and fixed to the surface of the bottom plate 1; a rib 17 is provided between the two sides of the bracket 9 and the bottom plate 1 respectively, and the rib 17 enhances the structural stability.

[0038] In some embodiments, the guide rail structure 2 is composed of two cylindrical linear guide rails that are spaced apart, and the cylindrical linear guide rails are arranged perpendicular to the surface of the base plate 1 .

[0039] In certain embodiments, such as Figure 3 As shown, a third guide rod 18 is also provided on the bracket 9 . The third guide rod 18 is parallel to the cylindrical linear guide rail and is used to guide the sliding of the slider 4 .

[0040] The two cylindrical linear guide rails and a third guide rod 18 form a guide assembly, which makes the sliding of the slider 4 more stable. The third guide rod 18 is not coplanar with the axes of the two cylindrical linear guide rails. Figure 3 As shown, the top end of the third guide rod 18 is fixed to the bracket 9 through the first connecting block 19, and the bottom end is fixed to the bottom plate 1 through screws; Figure 4 As shown, the second connecting block 20 fixed on the bottom surface of the slide block 4 is slidably arranged on the third guide rod 18 .

[0041] In some embodiments, the fixed rack 3 is arranged along the sliding direction of the slider 4 .

[0042] In certain embodiments, such as Figure 3As shown, the fixed rack 3 is arranged between two cylindrical linear guide rails, and the structure space is compact and space-saving. The fixed rack 3 is a straight rack with a simple structure and firm meshing and locking.

[0043] In certain embodiments, such as Figure 4 As shown, a support rod 11 is respectively arranged on the top surface and the bottom surface of the slider 4; the two support rods 11 are arranged opposite to each other, the rod bodies both extend out of the main body of the slider 4, and a guide rod is respectively arranged between the corresponding ends; the guide rods are arranged along the sliding direction of the slider 4, and the two guide rods constitute a guide rod structure 16.

[0044] In some embodiments, the slide plate 10 is in the shape of a concave plate, disposed on the side of the slider 4 away from the guide rail structure 2, and the plate surface is arranged parallel to and opposite to the base plate 1; the concave plate ends of the slide plate 10 are respectively slidably disposed on the guide rods, and the bottom of the concave plate is fixed with a spring probe 7 and the push rod end of the push-pull quick clamp 6.

[0045] The push rod end of the push-pull quick clamp 6 is fixedly connected to the slide plate 10 and is used to push the slide plate 10 to move along the guide rod structure 16 .

[0046] In some embodiments, a rotating shaft 13 is rotatably provided on the slider 4, and a locking rack 5 is provided on the rotating shaft 13, so that the locking rack 5 is rotatably provided on the slider 4. By rotating the locking rack 5, the locking rack 5 can be engaged or disengaged with the fixed rack 3. When engaged, the sliding of the slider 4 is restricted, and when disengaged, the restriction on the sliding of the slider 4 is released.

[0047] In some embodiments, the slider 4 is further provided with a limit block 14 , and a limit arc hole 15 is provided on the limit block 14 . The limit arc hole 15 is used to limit the rotatable angle of the locking rack 5 .

[0048] like Figure 4 and 5 As shown, the slider 4 is in the shape of a rectangular plate, the plate surface is parallel to the frame surface of the bracket 9, and two protrusion plates parallel to the bottom plate 1 are arranged on the side close to the bracket 9, a locking rack is arranged between the two protrusion plates, and the rotating shaft 13 passes through the two protrusion plates and is supported by the two protrusion plates for rotation; the upper protrusion plate is the limit block 14, which can be fixed on the top surface of the slider 4. The central angle of the circle corresponding to the limit arc hole 15 is 90 degrees. In addition, the rotating shaft 13 is fixedly connected to the locking rack 5, and a knob is arranged on the top through the limit block 14 to facilitate manual rotation operation.

[0049] In some embodiments, a limiting rod 12 is provided on the locking rack 5 , and the limiting rod 12 passes through the limiting arc hole 15 from the bottom, and can move from one end of the limiting arc hole 15 to the other end as the locking rack 5 rotates.

[0050] When in use, first release the engagement between the fixed rack 3 and the locking rack 5, and the position of the slider 4 can be easily and quickly adjusted manually over a wide range, so that the height between the spring probe 7 and the base plate 1 is approximately the width of the square battery 8 to be tested plus the distance that the spring probe 7 can be compressed; then the square battery 8 to be tested is placed vertically on the base plate 1, and the pole is roughly aligned with the spring probe 7; then the push-pull quick clamp 6 is pressed to make the spring probe 7 close to the pole, and the position of the square battery 8 to be tested can be manually fine-tuned at this time, and finally after the push-pull quick clamp 6 is pressed, the test end face of the detection spring probe 7 is aligned with the end face of the pole and pressed tightly; finally, the circuit of the spring probe 7 is connected to detect.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit its protection scope. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A square battery testing fixture, characterized in that: The device comprises a bottom plate (1) for placing a square battery (8) to be tested, the bottom plate (1) being provided with a bracket (9), the bracket (9) being provided with a guide rail structure (2) and a fixed rack (3); the guide rail structure (2) being provided with a slider (4), so that the slider (4) can slide in a direction perpendicular to the surface of the bottom plate (1); The slider (4) is provided with a locking rack (5), a push-pull quick clamp (6) and a guide rod structure (16); the locking rack (5) can mesh with the fixed rack (3) to limit the slider (4) from sliding on the guide rail structure (2); the guide rod structure (16) is provided with a slide plate (10) so that the slide plate (10) can slide in a direction perpendicular to the surface of the base plate (1); the slide plate (10) is provided with two spring probes (7); the push-pull quick clamp (6) is used to push the slide plate (10) to move back and forth on the guide rod structure (16) so that the test end face of the spring probe (7) can correspond to and fit with the end face of the pole of the square battery (8) to be tested.

2. A square battery testing fixture according to claim 1, characterized in that: The bracket (9) is a rectangular frame structure and is vertically fixed on the top surface of the bottom plate (1); the guide rail structure (2) and the fixed rack (3) are arranged on one frame surface of the bracket (9).

3. A square battery testing fixture according to claim 2, characterized in that: The short frame of the bracket (9) is fitted and fixed to the surface of the bottom plate (1); and a rib plate (17) is respectively provided between the two sides of the bracket (9) and the bottom plate (1).

4. A square battery testing fixture according to claim 1, characterized in that: The guide rail structure (2) is composed of two cylindrical linear guide rails that are spaced apart, and the cylindrical linear guide rails are arranged perpendicular to the surface of the base plate (1).

5. The square battery testing fixture according to claim 1, characterized in that: The fixed rack (3) is arranged along the sliding direction of the sliding block (4).

6. A square battery testing fixture according to claim 1, characterized in that: A support rod (11) is respectively arranged on the top surface and the bottom surface of the slider (4); the two support rods (11) are arranged opposite to each other, the rod bodies of both extend out of the slider (4) body, and a guide rod is respectively arranged between the corresponding ends; the guide rods are arranged along the sliding direction of the slider (4), and the two guide rods constitute the guide rod structure (16).

7. A square battery testing fixture according to claim 6, characterized in that: The slide plate (10) is in the shape of a concave plate and is arranged on a side of the slider (4) away from the guide rail structure (2), and the plate surface is arranged parallel to and opposite to the base plate (1); the concave plate ends of the slide plate (10) are respectively slidably arranged on the guide rods, and the spring probe (7) and the push rod end of the push-pull quick clamp (6) are fixed to the bottom of the concave plate.

8. The square battery testing fixture according to claim 1, characterized in that: A rotating shaft (13) is rotatably arranged on the slider (4), and the locking rack (5) is arranged on the rotating shaft (13).

9. A square battery testing fixture according to claim 8, characterized in that: The slider (4) is also provided with a limit block (14), and the limit block (14) is provided with a limit arc hole (15), and the limit arc hole (15) is used to limit the rotatable angle of the locking rack (5).

10. The square battery testing fixture according to claim 9, characterized in that: A limiting rod (12) is provided on the locking rack (5), and the limiting rod (12) passes through the limiting arc hole (15) from the bottom and can move from one end of the limiting arc hole (15) to the other end as the locking rack (5) rotates.

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