Tray positioning mechanism and battery detection equipment

Abstract

The invention discloses a tray positioning mechanism and battery detection equipment, the tray positioning mechanism comprises a rack, a roller assembly and a jacking positioning assembly, the roller assembly is installed on the rack, the roller assembly is used for conveying a tray, and the tray is used for placing a battery; the jacking positioning assembly comprises a jacking mounting plate, a wedge-shaped block and a driving piece, wherein the wedge-shaped block and the driving piece are mounted on the jacking mounting plate, and the driving piece is in driving connection with the wedge-shaped block. A positioning hole is formed in the tray, and a positioning pin is arranged on the jacking mounting plate; the roller assembly is provided with a bearing assembly, the wedge-shaped inclined face of the wedge-shaped block can abut against and push the bearing assembly, then the roller assembly is driven to ascend and descend, and the positioning pin is inserted into the positioning hole. According to the technical scheme, energy loss can be reduced, external air pressure influences are reduced, abrasion of the positioning pins and the positioning holes is reduced, the tray positioning precision is improved, and the testing precision is improved.

Description

Technical Field

[0001] This invention relates to the field of battery testing technology, and in particular to a tray positioning mechanism and battery testing equipment. Background Technology

[0002] Battery testing typically involves feeding a tray carrying batteries into the battery testing equipment via a conveyor. A lifting rod then lifts the tray to separate it from the conveyor, and a probe is driven to press the battery against it for testing. A lifting drive cylinder is connected to the base and drives the lifting rod to rise and fall.

[0003] In existing technologies, positioning holes are typically designed at the bottom of the tray, and positioning pins are designed on the battery tray positioning mechanism. A large drive cylinder is used to lift the tray and the battery tray positioning mechanism to insert the positioning pins into the positioning holes at the bottom of the tray. Then, the drive probe mechanism moves to contact the battery terminals for testing. However, this approach has several drawbacks: First, during battery testing, when the probe mechanism presses against the battery terminals, the drive cylinder needs to maintain a large lifting force for an extended period to support the tray, resulting in significant energy loss and requiring a large cylinder diameter. Second, positioning accuracy is affected by air pressure; for example, changes in air pressure affect the force output by the drive cylinder. If the force is too small, the weight of the tray will exceed the cylinder's output force, causing the tray to drop and affecting probe conductivity. Third, due to the large lifting force of the drive cylinder, the positioning pins can wear down and damage the positioning holes during insertion, eventually leading to the destruction of the tray's positioning holes. Summary of the Invention

[0004] The main objective of this invention is to propose a tray positioning mechanism and a battery testing device, which aims to reduce energy consumption, reduce the influence of external air pressure, reduce wear on positioning pins and positioning holes, improve tray positioning accuracy, and enhance testing accuracy.

[0005] To achieve the above objectives, the pallet positioning mechanism proposed in this invention includes: frame; A roller assembly, mounted on the frame, is used to convey a tray for holding batteries; A lifting and positioning assembly, comprising a lifting mounting plate, a wedge-shaped block mounted on the lifting mounting plate, and a driving component, wherein the driving component drives and connects to the wedge-shaped block; The tray is provided with positioning holes, and the lifting mounting plate is provided with positioning pins; The roller assembly is provided with a bearing assembly, and the wedge-shaped inclined surface of the wedge block can push against the bearing assembly, thereby driving the roller assembly to rise and fall, so that the positioning pin is inserted into the positioning hole.

[0006] Furthermore, the bearing assembly includes a bearing, a connecting plate, and a rotating shaft; the roller assembly includes a roller bracket and a roller rotatably connected to the roller bracket; the connecting plate is disposed on the roller bracket; the rotating shaft is connected inside the connecting plate; the bearing is sleeved on the rotating shaft; and the bearing is capable of pressing against the top surface of the wedge block.

[0007] Furthermore, the bearing assembly also includes an anti-detachment plate and a cam follower. The anti-detachment plate is disposed on the connecting plate, and the cam follower is disposed on the anti-detachment plate. The side wall of the wedge block is provided with a sliding groove, and the end of the cam follower can slide within the sliding groove.

[0008] Furthermore, the height of the wedge-shaped inclined surface gradually decreases in the direction from which the wedge block moves away from or towards the drive member.

[0009] Furthermore, there are two sets of wedge blocks, with the two sets of wedge blocks respectively located on both sides of the frame. Each set of wedge blocks has two wedge blocks, and the wedge blocks in each set are connected by a connecting rod. The driving component drives one of the wedge blocks in each set.

[0010] Furthermore, the driving component is a driving cylinder, and the driving end of the driving cylinder is driven to connect to one of the wedge blocks in each group.

[0011] Furthermore, the lifting mounting plate is provided with multiple mounting columns, each mounting column is provided with a first slide rail, and the roller bracket is provided with a first slider, the first slider being able to slide up and down on the first slide rail.

[0012] Furthermore, a second slide rail is provided on the lifting mounting plate, and a second slider is provided on the wedge block, the second slider being able to slide on the second slide rail.

[0013] Furthermore, the lifting mounting plate is provided with multiple positioning platforms, the surfaces of the multiple positioning platforms are all located on the same plane, and the positioning pins are provided on at least two of the positioning platforms.

[0014] Furthermore, a blocking block is provided on the frame, and the blocking block is positioned in the conveying direction of the roller assembly.

[0015] The present invention also proposes a battery testing device, which includes: The pallet positioning mechanism described above; A positive electrode probe mechanism is vertically mounted on the frame. The positive electrode probe mechanism is provided with multiple positive electrode probes, which are used to contact the positive electrode tab of the battery. A negative electrode probe mechanism is mounted on the frame in a height-adjustable manner. The negative electrode probe mechanism is provided with a plurality of negative electrode probes, which are used to contact the negative electrode tab of the battery.

[0016] The working process of the tray positioning mechanism of this invention is as follows: After the tray loaded with the battery to be tested is conveyed to the end by the roller assembly, the drive component drives the wedge block to move horizontally, and the bearing assembly slides along the lower part of the wedge-shaped inclined surface of the wedge block, causing the roller assembly to descend. The descent of the roller assembly drives the tray to descend, so that the positioning hole of the tray is aligned and inserted into the positioning pin of the lifting mounting plate, thus completing the tray positioning. This design has several advantages: First, during battery testing, the roller assembly and the tray can rely on the wedge block to support the bearing assembly, thereby reducing the output force of the drive component, lowering energy consumption, and requiring less output force from the drive component. Second, air pressure does not affect the output force of the drive component. Relying on the wedge block to support the roller assembly and the battery on the tray to maintain the test position for a long time ensures the stability of the probe contacting the battery terminals for a long time. Third, the drive component moves the wedge block to control the lifting and lowering of the roller assembly, and the tray descends, relying on its own weight to make the positioning hole fall into the positioning pin to complete the tray positioning. Compared with the traditional large-diameter cylinder driving the positioning pin to insert into the positioning hole, the tray positioning mechanism of this invention reduces the wear of the positioning pin and the positioning hole. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the battery testing equipment of the present invention; Figure 2 This is a schematic diagram of the positioning component and roller assembly in the pallet positioning mechanism of the present invention; Figure 3 This is a partial structural diagram of the positioning component and roller assembly in the pallet positioning mechanism of the present invention; Figure 4 This is a schematic diagram of the bearing assembly and wedge block in the pallet positioning mechanism of the present invention; Figure 5 This is a schematic diagram of the bearing assembly and wedge block in the pallet positioning mechanism of the present invention from another perspective; Figure 6 This is a schematic diagram of the pallet structure in the pallet positioning mechanism of the present invention.

[0018] Reference numerals: 100, Frame; 200, Tray; 300, Roller Assembly; 400, Lifting and Positioning Assembly; 410, Lifting Mounting Plate; 420, Wedge Block; 430, Drive Component; 210, Positioning Hole; 211, Positioning Pin; 440, Bearing Assembly; 441, Bearing; 442, Connecting Plate; 443, Rotating Shaft; 310, Roller Support; 320, Roller; 444, Anti-detachment Plate; 445, Cam Follower; 421, Sliding Groove; 422, Wedge Inclined Surface; 411, Mounting Column; 412, First Slide Rail; 311, First Slider; 413, Positioning Platform; 414, Second Slide Rail; 423, Second Slider; 312, Blocking Block; 500, Positive Probe Mechanism; 600, Negative Probe Mechanism; 424, Connecting Rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 6 This invention proposes a tray positioning mechanism for use in battery testing equipment.

[0021] The pallet positioning mechanism includes a frame 100, a roller assembly 300, and a lifting and positioning assembly 400. The roller assembly 300 is mounted on the frame 100 and is used to transport the pallet 200, which is used to hold batteries. The lifting and positioning assembly 400 includes a lifting mounting plate 410, a wedge block 420 mounted on the lifting mounting plate 410, and a drive component 430. The drive component 430 drives the wedge block 420. The pallet 200 is provided with a positioning hole 210, and the lifting mounting plate 410 is provided with a positioning pin 211. The roller assembly 300 is provided with a bearing assembly 440. The wedge-shaped inclined surface 422 of the wedge block 420 can push against the bearing assembly 440, thereby driving the roller assembly 300 to rise and fall, so that the positioning pin 211 is inserted into the positioning hole 210.

[0022] Specifically, the function of the roller assembly 300 is to convey the tray 200. The roller assembly 300 is height-adjustable, and the tray 200 is positioned by lifting and lowering the roller assembly 300. The positioning pin 211 and the positioning hole 210 are mutually adapted in shape. When the positioning pin 211 is inserted into the positioning hole 210, the tray 200 is positioned. The tray 200 contains the battery to be tested, which can be a blade battery or other types of battery. The tray 200 can be an airbag tray 200 or a basic tray 200. For example, the tray 200 is an airbag tray 200, which has multiple airbags inside, and the batteries are clamped between adjacent airbags. The wedge-shaped inclined surface 422 of the wedge block 420 cooperates with the bearing assembly 440. The bearing assembly 440 presses against the wedge-shaped inclined surface 422 of the wedge block 420, causing the wedge block 420 to drag the bearing assembly 440 to lift and lower, thereby realizing the lifting and lowering of the roller assembly 300. The working process of the tray positioning mechanism of the present invention is as follows: After the tray 200 loaded with the battery to be tested is conveyed to the end by the roller assembly 300, the drive component 430 drives the wedge block 420 to translate, and the bearing assembly 440 slides along the lower part of the wedge inclined surface 422 of the wedge block 420, so that the roller assembly 300 descends. The descent of the roller assembly 300 drives the tray 200 to descend, so that the positioning hole 210 of the tray 200 is aligned and inserted into the positioning pin 211 of the lifting mounting plate 410, thus completing the positioning of the tray 200. This configuration offers several advantages. First, during battery testing, the roller assembly 300 and tray 200 can be supported by the wedge block 420 against the bearing assembly 440, thus reducing the output force of the drive component 430, lowering energy consumption, and placing lower demands on the output force of the drive component 430. Second, air pressure does not affect the output force of the drive component 430. The battery, supported by the wedge block 420, remains in the testing position for an extended period, ensuring the stability of the probe's contact with the battery terminals during long-term testing. Third, the drive component 430 moves the wedge block 420 to control the lifting and lowering of the roller assembly 300, and the tray 200 descends, relying on its own weight to allow the positioning hole 210 to fall into the positioning pin 211, completing the positioning of the tray 200. Compared to the traditional method of using a large-diameter cylinder to drive the positioning pin 211 into the positioning hole 210, the tray positioning mechanism of this invention reduces wear on the positioning pin 211 and the positioning hole 210.

[0023] Furthermore, the bearing assembly 440 includes a bearing 441, a connecting plate 442, and a rotating shaft 443. The roller assembly 300 includes a roller support 310 and a roller 320 rotatably connected to the roller support 310. The connecting plate 442 is disposed on the roller support 310, the rotating shaft 443 is connected inside the connecting plate 442, and the bearing 441 is sleeved on the rotating shaft 443. The bearing 441 can press against the top surface of the wedge block 420. Specifically, the roller assembly 300 and the bearing assembly 440 are supported on the wedge block 420 by gravity. The wedge block 420 moves and presses against the bearing 441, so that the bearing 441 is subjected to an upward force. The bearing 441 can roll and move up and down on the wedge-shaped inclined surface 422 of the wedge block 420, and the roller assembly 300 also rises and falls accordingly, thereby realizing the insertion of the positioning pin 211 into the positioning hole 210 and positioning tray 200.

[0024] Please see Figures 2 to 5 Furthermore, the bearing assembly 440 also includes an anti-detachment plate 444 and a cam follower 445. The anti-detachment plate 444 is disposed on the connecting plate 442, and the cam follower 445 is disposed on the anti-detachment plate 444. A sliding groove 421 is formed on the side wall of the wedge block 420, and the end of the cam follower 445 can slide within the sliding groove 421. Through the structural restriction of the cam follower 445 and the sliding groove 421, the bearing assembly 440 can only move along a fixed path, thereby improving the structural fit stability between the bearing assembly 440 and the wedge block 420.

[0025] Please see Figures 2 to 5 Furthermore, the height of the wedge-shaped inclined surface 422 gradually decreases from the direction of the wedge-shaped block 420 away from or towards the drive member 430. Through the inclination of the wedge-shaped inclined surface 422 and its structural cooperation with the bearing assembly 440, the wedge-shaped block 420 pushes against the bearing assembly 440 to drive the roller assembly 300 to rise and fall, thus completing the positioning of the tray 200.

[0026] Please see Figures 2 to 5 Furthermore, there are two sets of wedge blocks 420, each set located on one side of the frame 100. Each set contains two wedge blocks 420, connected by a connecting rod 424. The drive unit 430 drives one wedge block 420 in each set. Thus, driving one wedge block 420 causes the other wedge block 420 to move as well, allowing one drive unit 430 to simultaneously move both wedge blocks 420. The two wedge blocks 420 in each set can be configured such that moving either one along the length of the connecting rod 424 replaces the other, ensuring that when the two wedge blocks 420 move synchronously, the roller assembly 300 rises and falls uniformly on both sides, preventing tilting.

[0027] Please see Figures 2 to 5Furthermore, the drive component 430 is a drive cylinder, and the drive end of the drive cylinder is connected to one of the wedge blocks 420 in each group. Specifically, there are two wedge blocks 420 in each group, and the drive cylinder only needs to drive any one wedge block 420 to move both wedge blocks 420. In this way, the drive cylinder only needs to output a small force to make the roller assembly 300 drive the tray 200 to rise and fall, ensuring that the positioning pin 211 can be inserted into the positioning hole 210 of the tray 200. Alternatively, the drive component 430 can also use other types of power sources that can use power sources with smaller output forces compared to traditional cylinders.

[0028] Please see Figures 2 to 5 Furthermore, the lifting mounting plate 410 is provided with multiple mounting columns 411, each mounting column 411 is provided with a first slide rail 412, and the roller bracket 310 is provided with a first slider 311, which can slide up and down on the first slide rail 412. With this configuration, the roller assembly 300 can move up and down, ensuring the stability of the roller assembly 300.

[0029] Please see Figures 2 to 5 Furthermore, a second slide rail 414 is provided on the lifting mounting plate 410, and a second slider 423 is provided on the wedge block 420, which can slide on the second slide rail 414. In this way, the stability of the wedge block 420 sliding on the second slide rail 414 of the lifting mounting plate 410 is ensured.

[0030] Please see Figures 2 to 5 Furthermore, the lifting mounting plate 410 is provided with multiple positioning platforms 413, all of which have surfaces on the same plane. At least two positioning platforms 413 are equipped with positioning pins 211. It is understandable that during installation, the rollers 320 of the roller assembly 300 may have varying heights, resulting in an uneven appearance and making it difficult to ensure they are on a single plane. By designing multiple positioning platforms 413 on a single plane, the positioning pins 211 can be inserted into the positioning holes 210 when the pallet 200 is lowered into position, ensuring accurate positioning of the pallet 200. The positioning pins 211 can be located on each positioning platform 413, on two diagonally opposite positioning platforms 413, or on two adjacent positioning platforms 413, as long as the accuracy of the pallet 200's positioning is ensured.

[0031] Please see Figure 1Furthermore, a blocking block 312 is provided on the frame 100, and the blocking block 312 is located in the conveying direction of the roller assembly 300. The tray 200 flows into the roller assembly 300 from the assembly line. The tray 200 is blocked by the blocking block 312. The drive unit 430 drives the wedge block 420 to move, the roller assembly 300 descends, the positioning pin 211 is gradually inserted into the positioning hole 210, and the tray 200 is placed on the positioning platform 413.

[0032] Please see Figures 1 to 6 The present invention also proposes a battery testing device, which includes a tray positioning mechanism, a positive electrode probe mechanism 500, and a negative electrode probe mechanism 600. The positive electrode probe mechanism 500 is movably mounted on a frame 100 and is provided with a plurality of positive electrode probes for contacting the positive electrode tabs of the battery. The negative electrode probe mechanism 600 is movably mounted on a frame 100 and is provided with a plurality of negative electrode probes for contacting the negative electrode tabs of the battery. The working process of the battery testing equipment of the present invention is as follows: the tray 200 is conveyed from the previous process into the roller assembly 300. The roller assembly 300 rotates until the blocking block 312 blocks the tray 200. The driving cylinders on both sides drive the wedge block 420 to move. The bearing 441 of the bearing assembly 440 moves on the wedge-shaped inclined surface 422 of the wedge block 420. The roller assembly 300 descends with the bearing assembly 440, and the tray 200 also descends, so that the positioning pin 211 is inserted into the positioning hole 210 to complete the positioning. At this time, the positioning platform 413 supports the tray 200, and the positive electrode probe mechanism 500 and the negative electrode probe... The needle mechanism 600 operates to press the positive and negative probes onto the positive and negative terminals of the battery for testing. Throughout the test, the drive cylinders do not require additional lifting force, relying entirely on the positioning platform 413 to support the tray 200, thus saving energy. After the test, the positive probe mechanism 500 and the negative probe mechanism 600 return to their initial positions. The drive cylinders on both sides drive the wedge block 420 to move, and the bearing assembly 440 drives the roller assembly 300 and the tray 200 to rise. The positioning pin 211 disengages from the positioning hole 210, and the roller assembly 300 operates to transport the tray 200 away, completing the test.

[0033] The above are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A pallet positioning mechanism, characterized in that, The pallet positioning mechanism includes: frame; A roller assembly, mounted on the frame, is used to convey a tray for holding batteries; A lifting and positioning assembly, comprising a lifting mounting plate, a wedge-shaped block mounted on the lifting mounting plate, and a driving component, wherein the driving component drives and connects to the wedge-shaped block; The tray is provided with positioning holes, and the lifting mounting plate is provided with positioning pins; The roller assembly is provided with a bearing assembly, and the wedge-shaped inclined surface of the wedge block can push against the bearing assembly, thereby driving the roller assembly to rise and fall, so that the positioning pin is inserted into the positioning hole.

2. The pallet positioning mechanism as described in claim 1, characterized in that, The bearing assembly includes a bearing, a connecting plate, and a rotating shaft. The roller assembly includes a roller bracket and a roller rotatably connected to the roller bracket. The connecting plate is disposed on the roller bracket, the rotating shaft is connected inside the connecting plate, the bearing is sleeved on the rotating shaft, and the bearing is capable of pressing against the top surface of the wedge block.

3. The pallet positioning mechanism as described in claim 2, characterized in that, The bearing assembly also includes an anti-detachment plate and a cam follower. The anti-detachment plate is disposed on the connecting plate, and the cam follower is disposed on the anti-detachment plate. The side wall of the wedge block is provided with a sliding groove, and the end of the cam follower can slide in the sliding groove.

4. The pallet positioning mechanism as described in claim 3, characterized in that, The height of the wedge-shaped inclined surface gradually decreases from the direction in which the wedge-shaped block moves away from or towards the drive member.

5. The pallet positioning mechanism as described in claim 4, characterized in that, There are two sets of wedge blocks, which are respectively located on both sides of the frame. Each set of wedge blocks has two blocks, and the wedge blocks in each set are connected by a connecting rod. The driving component drives one of the wedge blocks in each set.

6. The pallet positioning mechanism as described in claim 5, characterized in that, The driving component is a driving cylinder, and the driving end of the driving cylinder is driven and connected to one of the wedge-shaped blocks in each group.

7. The pallet positioning mechanism as described in claim 6, characterized in that, The lifting mounting plate is provided with multiple mounting columns, each mounting column is provided with a first slide rail, and the roller bracket is provided with a first slider, which can slide up and down on the first slide rail.

8. The pallet positioning mechanism as described in claim 7, characterized in that, The lifting mounting plate is provided with a second slide rail, and the wedge block is provided with a second slider, which can slide on the second slide rail.

9. The pallet positioning mechanism as described in any one of claims 1 to 8, characterized in that, The lifting mounting plate is provided with multiple positioning platforms, the surfaces of the multiple positioning platforms are all located on the same plane, and the positioning pins are provided on at least two of the positioning platforms.

10. The pallet positioning mechanism as described in claim 1, characterized in that, The frame is provided with a blocking block, which is positioned in the conveying direction of the roller assembly.

11. A battery testing device, characterized in that, The battery testing equipment includes: The pallet positioning mechanism as described in any one of claims 1 to 10; A positive electrode probe mechanism is vertically mounted on the frame. The positive electrode probe mechanism is provided with multiple positive electrode probes, which are used to contact the positive electrode tab of the battery. A negative electrode probe mechanism is mounted on the frame in a height-adjustable manner. The negative electrode probe mechanism is provided with a plurality of negative electrode probes, which are used to contact the negative electrode tab of the battery.

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