Battery restraint machine

Abstract

This utility model discloses a battery restraint machine, including a restraint tray, a pressurizing mechanism, and a displacement sensor. The restraint tray includes a fixed plate, a front push plate, a rear side plate, a guide rod, and multiple restraint plates arranged in parallel at intervals. A guide rod connects the fixed plate and the rear side plate. The two ends of the restraint plates and the front push plate are slidably sleeved on the guide rod. A screw is mounted on the fixed plate, and the screw presses against the front push plate. The pressurizing mechanism includes a drive assembly and a nut seat. The drive assembly is connected to the nut seat, and the nut seat is connected to a front push shaft. The front push shaft can push against the front push plate. A movable block is sleeved on the front push shaft, and a drive module is provided on the movable block. The drive module drives a locking shaft, which can lock the screw and drive it to rotate. An elastic element is provided between the movable block and the nut seat. A displacement sensor is provided on the movable block, and the displacement sensor can detect the position of the front push plate. This technical solution can ensure the consistency of the pressure and displacement of the screw of the restraint tray.

Description

Technical Field

[0001] This utility model relates to the field of battery restraint technology, and in particular to a battery restraint machine. Background Technology

[0002] With the booming development of new energy vehicles and the increasing demands on their range, safety, and charging speed, the requirements for batteries are also rising. During the battery formation process, a large amount of gas is generated. If this gas is not discharged in time, it can easily cause the battery casing to expand, affecting the battery's appearance and performance. To limit battery casing expansion, battery restraint machines are generally used, especially in formation and settling processes, where battery restraint machines are necessary to control expansion.

[0003] Some existing battery clamping machines use a drive locking shaft to tighten the screws of the clamping tray, thereby achieving the purpose of clamping the batteries on each clamping plate. However, due to the poor control precision of the locking shaft and the lack of detection methods to check whether the screws are tightened, there may be cases where the screws are not tightened, resulting in poor consistency of battery clamping for each batch. Utility Model Content

[0004] The main purpose of this invention is to propose a battery restraint machine, which aims to improve the accuracy of the locking of the detection lock shaft control screw and enhance the consistency of battery dimensions.

[0005] To achieve the above objectives, the battery restraint machine proposed in this utility model includes:

[0006] A restraint tray includes a fixed plate, a front push plate, a rear side plate, a guide rod, and multiple restraint plates arranged in parallel and spaced apart. The guide rod connects the fixed plate and the rear side plate. The two ends of the restraint plates and the front push plate are slidably sleeved on the guide rod. A battery is placed between two adjacent restraint plates. A screw is installed on the fixed plate, and the screw presses against the front push plate.

[0007] A pressurizing mechanism includes a drive assembly and a nut seat. The drive assembly is driven and connected to the nut seat. The nut seat is connected to a push shaft. The push shaft can pass through the fixed plate and push against the push plate. A movable block is sleeved on the outer periphery of the push shaft. A drive module is provided on the movable block. The drive module is driven and connected to a locking shaft. The locking shaft can lock the screw and drive it to rotate. An elastic element is provided between the movable block and the nut seat.

[0008] A displacement sensor is disposed on the movable block, and the displacement sensor can emit and receive light to detect the position of the front push plate.

[0009] Furthermore, the drive assembly includes a servo motor, a first reducer, and a ball screw. The servo motor is driven by the first reducer, and the first reducer is driven by the ball screw. The ball screw is threadedly connected to a nut seat, and when the ball screw rotates, it drives the nut seat to move.

[0010] Furthermore, the drive module includes a rotary motor and a second reducer, the rotary motor being driven by the second reducer and the second reducer being driven by the lock shaft.

[0011] Furthermore, a nut connector is fitted around the outer periphery of the ball screw, and a pressure sensor is sandwiched between the nut connector and the nut seat.

[0012] Furthermore, the fixing plate has a through hole corresponding to the position of the displacement sensor, so that the light emitted by the displacement sensor passes through the through hole to detect the position of the front push plate.

[0013] Furthermore, the elastic element includes a guide rod and a spring, with the two ends of the guide rod connected to the movable block and the nut seat respectively, and the spring sleeved on the outer periphery of the guide rod.

[0014] Furthermore, the screw has a protruding post, and the locking shaft can be engaged with the protruding post and drive the screw to rotate.

[0015] Furthermore, the outer periphery of the locking shaft is recessed to form multiple grooves, and the protrusion is engaged in the grooves.

[0016] Furthermore, a pull-back main column is connected to the nut seat, and a pull-back assembly is connected to the pull-back main column. The pull-back assembly includes a pull-back main board, a cylinder, and a pull-back plate. The pull-back main board is connected to the pull-back main column, the cylinder is mounted on the pull-back main board, the cylinder drives the pull-back plate, and a pull-back rod is fixedly connected to the front push plate. The pull-back plate is used to hook the pull-back rod and pull it back.

[0017] Furthermore, the pull-back plate has several hook holes, and the pull-back rod can be inserted into the hook holes.

[0018] When the battery needs to be restrained, the drive assembly outputs a drive shaft to move forward, allowing the drive shaft to penetrate the fixed plate and push against the front push plate. The movement of the front push plate gradually reduces the gap between the restraint plates, compressing the battery. During the process of the drive shaft pushing the front push plate, the screw abuts against the locking shaft and creates a reaction force. The locking shaft transmits the force to the elastic element through the movable block. The elastic element is compressed and buffered. At this time, the drive shaft stops at the corresponding position according to the preset pressure value. The drive module drives the locking shaft to rotate. The rotation of the screw causes the screw to move forward and gradually press against the front push plate, thereby causing the restraint plates to clamp the battery. The displacement sensor detects the position of the front push plate to determine whether the screw is locked. Then, the drive shaft, movable block, and locking shaft retract. At this time, the screw continues to press against the front push plate, completing the continuous restraint of the battery by the restraint tray. When the battery needs to be released, the locking shaft first engages and presses against the screw under the action of the elastic element. The drive module then drives the locking shaft to reverse, causing the screw to reverse as well. The elastic force of the elastic element gradually decreases. At this point, the drive assembly drives the front push shaft to retract, and the screw retracts, releasing the pressure on the front push plate. This causes the various restraint plates to move, completing the release. This setup ensures a high degree of automation in the battery restraint machine and guarantees consistency in the pressure and displacement of the restraint tray screws. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the battery restraint mechanism of this utility model;

[0020] Figure 2 This is a schematic diagram of the pressurizing mechanism in the battery restraint machine of this utility model;

[0021] Figure 3 This is a schematic diagram of the pressurizing mechanism in the battery restraint machine of this utility model from another perspective;

[0022] Figure 4 This is a schematic diagram of the restraint tray in the battery restraint machine of this utility model;

[0023] Figure 5 This is a schematic diagram of the drive assembly in the battery restraint machine of this utility model;

[0024] Figure 6 This is a partial structural diagram of the pressurizing mechanism in the battery restraint machine of this utility model;

[0025] Figure 7 This is a schematic diagram of the pull-back assembly and pull-back main column in the battery restraint machine of this utility model;

[0026] Figure 8 This is a structural schematic diagram of the pull-back assembly and pull-back main column in the battery restraint machine of this utility model from another perspective.

[0027] Reference numerals: 100, restraint tray; 110, fixing plate; 120, front push plate; 130, rear side plate; 140, guide rod; 150, restraint plate; 151, battery; 160, screw; 200, pressurizing mechanism; 210, drive assembly; 220, nut seat; 230, front push shaft; 240, moving block; 250, drive module; 260, locking shaft; 270, elastic element; 300, displacement sensor; 211, servo motor. 212. Motor; 213. First reducer; 251. Ball screw; 252. Rotary motor; 410. Nut connector; 420. Pressure sensor; 111. Through hole; 271. Guide rod; 272. Spring; 161. Protrusion; 261. Groove; 500. Pull-back assembly; 510. Pull-back main column; 520. Pull-back main plate; 530. Cylinder; 540. Pull-back plate; 550. Pull-back rod; 560. Hook hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 8 This utility model proposes a battery restraint machine.

[0030] The battery restraint machine includes a restraint tray 100, a pressurizing mechanism, and a displacement sensor 300. The restraint tray 100 includes a fixed plate 110, a front push plate 120, a rear side plate 130, a guide rod 140, and multiple restraint plates 150 arranged in parallel at intervals. The guide rod 140 connects the fixed plate 110 and the rear side plate 130. The two ends of the restraint plates 150 and the front push plate 120 are slidably sleeved on the guide rod 140. A battery 151 is placed between two adjacent restraint plates 150. A screw 160 is installed on the fixed plate 110, and the screw 160 presses against the front push plate 120. The pressurizing mechanism 200 includes a drive assembly 210 and a nut. The seat 220 is driven by the drive assembly 210. The seat 220 is connected to the front push shaft 230, which can pass through the fixed plate 110 and push against the front push plate 120. The outer periphery of the front push shaft 230 is fitted with a movable block 240. The movable block 240 is provided with a drive module 250. The drive module 250 is driven by a locking shaft 260, which can lock the screw 160 and drive it to rotate. An elastic element 270 is provided between the movable block 240 and the seat 220. The displacement sensor 300 is provided on the movable block 240. The displacement sensor 300 can emit and receive light to detect the position of the front push plate 120.

[0031] Specifically, the displacement sensor 300 can be a laser sensor, a type of sensor that uses laser technology for measurement. The displacement sensor 300 detects the distance between itself and the front push plate 120 to determine the position of the front push plate 120, and then determines whether the screw 160 has pressed the front push plate 120 into the corresponding position, and whether the screw 160 is locked. If it is not locked, a signal is sent to the alarm to trigger manual intervention. The fixing plate 110 and the rear side plate 130 are fixed, while the restraint plate 150 and the front push plate 120 can move on the guide rod 140 to complete the restraint and release actions. When it is necessary to restrain the battery 151, the drive assembly 210 outputs a drive to move the front push shaft 230 forward, allowing the front push shaft 230 to penetrate the fixed plate 110 and push the front push plate 120. The movement of the front push plate 120 gradually reduces the gap between the restraint plates 150, compressing the battery 151. During the process of the front push shaft 230 pushing the front push plate 120, the screw 160 abuts against the locking shaft 260 and exerts a reaction force on it. The locking shaft 260 transmits the force to the elastic member 270 through the movable block 240, and the elastic member 270 is subjected to compression buffering. When the force is applied, the front push shaft 230 stops at the corresponding position according to the preset pressure value, the drive module 250 drives the locking shaft 260 to rotate, and the screw 160 rotates, causing the screw 160 to move forward and gradually press against the front push plate 120, thereby driving the restraint plate 150 to clamp the battery 151. The displacement sensor 300 detects the position of the front push plate 120 to determine whether the screw 160 is locked. Then the front push shaft 230, the movable block 240, and the locking shaft 260 retract. At this time, the screw 160 continues to press against the front push plate 120, completing the restraint tray 100 to continuously restrain the battery 151. When it is necessary to release the battery 151, the locking shaft 260 first locks onto the screw 160 under the action of the elastic element 270. The drive module 250 drives the locking shaft 260 to reverse, causing the screw 160 to reverse as well. The elastic force of the elastic element 270 gradually decreases. At this time, the drive assembly 210 drives the front push shaft 230 to retract, and the screw 160 retracts, releasing the pressure on the front push plate 120. This causes the restraint plates 150 to move, completing the release. With this configuration, the battery restraint machine has a high degree of automation and can ensure the consistency of pressure and displacement of the restraint tray 100 and screw 160.

[0032] Please see Figures 1 to 6 Furthermore, the drive assembly 210 includes a servo motor 211, a first reducer 212, and a ball screw 213. The servo motor 211 drives the first reducer 212, and the first reducer 212 drives the ball screw 213. The ball screw 213 is threadedly connected to a threaded nut 220. When the ball screw 213 rotates, it drives the threaded nut 220 to move. Specifically, the servo motor 211 drives the ball screw 213 to rotate through the first reducer 212, thereby enabling the threaded nut 220 to move, and thus realizing the movement of the push shaft 230.

[0033] Please see Figure 3 and Figure 6 Furthermore, the drive module 250 includes a rotary motor 251 and a second reducer 252. The rotary motor 251 drives the second reducer 252, and the second reducer 252 drives the locking shaft 260. Specifically, the rotary motor 251 drives the locking shaft 260 to rotate through the second reducer 252, thereby locking and unlocking the screw 160. The rotary motor 251 can be programmed with a torque output value. When the torque reaches the set value, the second step of locking the locking shaft 260 is completed.

[0034] Please see Figures 1 to 6 Furthermore, a nut connector 410 is fitted around the outer periphery of the ball screw 213, and a pressure sensor 420 is sandwiched between the nut connector 410 and the nut seat 220. Specifically, when the servo motor 211 applies pressure to the set pressure, the pressure sensor 420 determines whether the locking head is locked by judging the change in the set pressure. In this way, the locking shaft 260 is used to determine whether the screw 160 is locked by three methods: displacement sensor 300, rotary motor 251, and pressure sensor 420, ensuring the consistency of pressure and displacement of the screw 160 in the restraint tray 100.

[0035] Please see Figures 1 to 6 Furthermore, the fixed plate 110 has a through hole 111 corresponding to the position of the displacement sensor 300, allowing light emitted by the displacement sensor 300 to pass through the through hole 111 and detect the position of the front push plate 120. In this way, the displacement sensor 300 can emit light that passes through the through hole 111 to reach the front push plate 120, detect the position of the front push plate 120, and thus determine whether the locking shaft 260 is locked. Multiple displacement sensors 300 can be set, and using multiple displacement sensors 300 to determine the position of the front push plate 120 improves the detection accuracy.

[0036] Please see Figures 1 to 8 Furthermore, the elastic element 270 includes a guide rod 271 and a spring 272. The two ends of the guide rod 271 are respectively connected to the movable block 240 and the nut seat 220, and the spring 272 is sleeved on the outer periphery of the guide rod 271. When the front push shaft 230 presses against the front push plate 120, the spring 272 is compressed and buffered. The reaction force of the front push plate 120 on the front push shaft 230 is transmitted to the movable block 240 through the front push shaft 230. The movable block 240 exerts a force on the nut seat 220, and the pressure sensor 420 detects the magnitude of the force exerted by the front push plate 120 on the front push shaft 230.

[0037] Please see Figures 1 to 6 Furthermore, the screw 160 has a protruding post 161, and the locking shaft 260 can be engaged with the protruding post 161 and drive the screw 160 to rotate. In this way, it is convenient for the locking shaft 260 to engage the screw 160 and thus drive it to rotate.

[0038] Please see Figures 1 to 6 Furthermore, the outer periphery of the locking shaft 260 is recessed with multiple grooves 261, and the protrusion 161 is engaged in the grooves 261. By having the grooves 261 of the locking shaft 260 engage with the protrusion of the screw 160, it is ensured that the locking shaft 260 will not disengage from the screw 160 during the rotation of the screw 160, thereby ensuring that the locking shaft 260 can drive the screw 160 to rotate.

[0039] Please see Figures 1 to 8 Furthermore, a pull-back main column 510 is connected to the nut seat 220, and a pull-back assembly 500 is connected to the pull-back main column 510. The pull-back assembly 500 includes a pull-back main board 520, a cylinder 530, and a pull-back plate 540. The pull-back main board 520 is connected to the pull-back main column 510, the cylinder 530 is installed on the pull-back main board 520, and the cylinder 530 drives the pull-back plate 540. A pull-back rod 550 is fixedly connected to the front push plate 120, and the pull-back plate 540 is used to hook the pull-back rod 550 and pull it back. Thus, by adjusting the position of the pull-back plate 540 through the cylinder 530, the pull-back plate 540 can switch back and forth between locking the pull-back rod 550 and releasing the pull-back rod 550. When the pull-back plate 540 locks the pull-back rod 550, the servo motor 211 can drive the nut seat 220 through the first reducer 212 to drive the movable block 240 to retract. In turn, the pull-back plate 540 drives the pull-back rod 550 to retract, so that the pull-back drive module 250 drives the pull-back plate 540 to retract and pull the pull-back rod 550 back. The pull-back rod 550 drives the front push plate 120 to retract, so that the interval between each restraint plate 150 can be expanded. At this time, the battery 151 can be removed.

[0040] Please see Figures 7 to 8 To facilitate the pull-back plate 540 engaging the pull-back rod 550, the pull-back plate 540 further includes several hook holes 560 into which the pull-back rod 550 can be engaged. By engaging the pull-back rod 550 through the hook holes 560, the pull-back plate 540 hooks the rod cap of the pull-back rod 550 when it retracts, thus enabling the pull-back plate 540 to move the pull-back rod 550.

[0041] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. All equivalent structural transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A battery restraint machine, characterized in that, The battery restraint mechanism includes: A restraint tray includes a fixed plate, a front push plate, a rear side plate, a guide rod, and multiple restraint plates arranged in parallel and spaced apart. The guide rod connects the fixed plate and the rear side plate. The two ends of the restraint plates and the front push plate are slidably sleeved on the guide rod. A battery is placed between two adjacent restraint plates. A screw is installed on the fixed plate, and the screw presses against the front push plate. A pressurizing mechanism includes a drive assembly and a nut seat. The drive assembly is driven and connected to the nut seat. The nut seat is connected to a push shaft. The push shaft can pass through the fixed plate and push against the push plate. A movable block is sleeved on the outer periphery of the push shaft. A drive module is provided on the movable block. The drive module is driven and connected to a locking shaft. The locking shaft can lock the screw and drive it to rotate. An elastic element is provided between the movable block and the nut seat. A displacement sensor is disposed on the movable block, and the displacement sensor can emit and receive light to detect the position of the front push plate.

2. The battery restraint machine as described in claim 1, characterized in that, The drive assembly includes a servo motor, a first reducer, and a ball screw. The servo motor drives the first reducer, and the first reducer drives the ball screw. The ball screw is threadedly connected to a nut seat. When the ball screw rotates, it drives the nut seat to move.

3. The battery restraint machine as described in claim 2, characterized in that, The drive module includes a rotary motor and a second reducer. The rotary motor is driven by the second reducer, and the second reducer is driven by the lock shaft.

4. The battery restraint machine as described in claim 3, characterized in that, The outer periphery of the ball screw is also fitted with a nut connector, and a pressure sensor is sandwiched between the nut connector and the nut seat.

5. The battery restraint machine as described in claim 4, characterized in that, The fixed plate has a through hole corresponding to the position of the displacement sensor, so that the light emitted by the displacement sensor passes through the through hole to detect the position of the front push plate.

6. The battery restraint machine as described in claim 1, characterized in that, The elastic element includes a guide rod and a spring. The two ends of the guide rod are respectively connected to the movable block and the nut seat, and the spring is sleeved on the outer periphery of the guide rod.

7. The battery restraint machine as described in claim 1, characterized in that, The screw has a protruding post, and the locking shaft can be locked in the protruding post and drive the screw to rotate.

8. The battery restraint machine as described in claim 7, characterized in that, The outer periphery of the locking shaft is recessed to form multiple grooves, and the protrusion is inserted into the grooves.

9. The battery restraint machine as described in claim 1, characterized in that, The nut seat is also connected to a pull-back main column, and the pull-back main column is connected to a pull-back assembly. The pull-back assembly includes a pull-back main board, a cylinder, and a pull-back plate. The pull-back main board is connected to the pull-back main column, the cylinder is mounted on the pull-back main board, and the cylinder drives the pull-back plate. A pull-back rod is fixedly connected to the front push plate, and the pull-back plate is used to hook the pull-back rod and pull it back.

10. The battery restraint machine as described in claim 9, characterized in that, The pull-back plate has several hook holes, and the pull-back rod can be inserted into the hook holes.

Images