Compatible quick-change grippers for battery trays

Abstract

The utility model relates to the field of battery technology, and in particular to a compatible quick-change gripper for a battery tray, comprising a frame and two gripping mechanisms installed on the frame, the two gripping mechanisms are arranged at intervals, and the two gripping mechanisms can be close to or far away from each other; the gripping mechanism comprises two gripping components arranged at intervals, the gripping component comprises a mounting seat, a pneumatic shaft, a locker, a support plate and a power component, the locker is fixedly connected to the mounting seat, the pneumatic shaft is located above the support plate, the pneumatic shaft is installed on the locker, the locker can lock the pneumatic shaft and release the fixation of the pneumatic shaft after ventilation, the power component is fixedly connected to the mounting seat, the output end of the power component is transmission-connected to the support plate, the power component is used to provide power for the rotation of the support plate, the support plate is used to support the battery tray, and with the cooperation of the pneumatic shaft and the support plate, the battery tray is clamped, thereby realizing positive and negative gripping of battery trays compatible with multiple models, and having a wide range of applications.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a compatible quick-change gripper for a battery tray. Background Art

[0002] The battery tray is an important part of the power system of new energy vehicles and an important guarantee for the safety of the battery system. Its weight accounts for 20%-30% of the battery system, and it requires high precision, corrosion resistance, high temperature resistance, impact resistance and other properties. The transfer of battery trays between different processes is completed by grippers. However, due to the size differences of battery trays of different battery models, when the battery tray model in the production process is changed, the gripper must also be replaced synchronously, which takes a long time. In addition, during the production process, the battery tray may be placed upright or inverted due to production requirements, and the existing grippers cannot achieve reverse gripping.

[0003] The patent number is CN202222799388.9, and the name is a multifunctional mechanical gripper, which includes a mounting frame, a first clamping arm, a second clamping arm, a driving device and a limiting device. The mechanical gripper can only clamp materials in the forward direction. When the material is turned over, it cannot change with the material situation, and its applicability is single. Utility Model Content

[0004] The technical problem to be solved by the present invention is: in order to overcome the problem in the prior art that due to the size difference of battery trays of different battery models, when the battery tray model in the production process is changed, the gripper also needs to be replaced synchronously, which is time-consuming, and the battery tray may be placed upright or inverted during the production process due to production requirements, and the existing gripper cannot achieve reverse gripping, a compatible quick-change gripper for a battery tray is provided.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a compatible quick-change gripper for a battery tray, comprising a frame and two gripping mechanisms mounted on the frame, the two gripping mechanisms are arranged at intervals, and the two gripping mechanisms can be close to or away from each other;

[0006] The grabbing mechanism includes two grabbing components arranged at intervals, and the grabbing component includes a mounting seat, a pneumatic shaft, a locker, a support plate and a power part. The locker is fixedly connected to the mounting seat, and the pneumatic shaft is located above the support plate. The pneumatic shaft is installed on the locker. The locker can lock the pneumatic shaft and release the fixation of the pneumatic shaft after ventilation. The power part is fixedly connected to the mounting seat, and the output end of the power part is transmission-connected to the support plate. The power part is used to provide power for the rotation of the support plate. The support plate is used to support the battery tray. Through the cooperation of the pneumatic shaft and the locker, the end face of one side of the battery tray is fixed, and through the rotatable support plate, the other end face of the corresponding battery tray is fixed. With the cooperation of the pneumatic shaft and the support plate, the battery tray is clamped, thereby realizing the positive and negative grabbing of battery trays compatible with multiple models, and having a wide range of applications.

[0007] In order to solve the problems of low bearing strength of the support plate and poor connection stability, the support plate and the mounting seat are further rotatably connected.

[0008] The locking device is further provided with a laser rangefinder for detecting whether the battery tray has fallen off.

[0009] In order to solve the problem of insufficient synchronization between the two grabbing assemblies, the grabbing mechanism further includes a connecting rod, which is located between the two grabbing assemblies, and the end of the connecting rod is fixedly connected to the mounting seat of the corresponding grabbing assembly.

[0010] In order to solve the problem of poor stability of the gripper assembly, the mounting seat and the frame are further connected by a sliding assembly, the sliding assembly includes a guide rail extending along the moving direction of the gripper assembly and a slider matching the guide rail, the guide rail and the frame are fixedly connected, the slider and the mounting seat are fixedly connected, and the guide rail and the slider are slidably connected.

[0011] The machine frame is further provided with a displacement sensor for detecting the position of the grabbing component.

[0012] In order to solve the problem of low efficiency in gripper maintenance and replacement, a quick-change disc is further installed on the frame.

[0013] The quick-change gripper further includes a visual positioning sensor for detecting the position of the battery tray.

[0014] The quick-change gripper further includes a pitch-changing mechanism, which is used to provide power for the two gripping mechanisms to move closer to or farther away from each other. The pitch-changing mechanism includes a driving member, a screw and two nut seats. The output end of the driving member is transmission-connected to the screw. The driving member is used to provide power for the rotation of the screw. The screw has two threaded segments arranged at intervals. The thread rotation directions of the two threaded segments are opposite. The threaded segments and the nut seats correspond one-to-one, and the threaded segments and the corresponding nut seats are threadedly connected. The nut seats and the gripping mechanisms correspond one-to-one, and the nut seats and the corresponding gripping mechanisms are fixedly connected.

[0015] The beneficial effect of the utility model is that the utility model provides a compatible quick-change gripper for a battery tray, which fixes the end face of one side of the battery tray through the cooperation of the pneumatic shaft and the locker, and fixes the other end face of the corresponding battery tray through a rotatable support plate. With the cooperation of the pneumatic shaft and the support plate, the battery tray is clamped, thereby realizing positive and negative gripping of battery trays compatible with multiple models, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This utility model Figure 1 Schematic diagram of the local enlarged structure in;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 5 It is a structural schematic diagram of the utility model in which the grabbing mechanism is an electric claw.

[0022] In the figure: 1, frame, 11, displacement sensor, 12, quick change plate,

[0023] 2. Grabbing mechanism, 21. Grabbing assembly, 211. Mounting seat, 212. Pneumatic shaft, 213. Locking device, 214. Support plate, 215. Power part, 216. Laser rangefinder, 22. Connecting rod, 23. Sliding assembly, 231. Guide rail, 232. Sliding block,

[0024] 3. Visual positioning sensor,

[0025] 4. Pitch changing mechanism, 41. Driving member, 42. Screw rod, 43. Nut seat. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] Embodiment 1:

[0028] like Figure 1It is a structural schematic diagram of the utility model, a compatible quick-change gripper for a battery tray, comprising a frame 1 and two gripping mechanisms 2 mounted on the frame 1, the two gripping mechanisms 2 are arranged at intervals, and the two gripping mechanisms 2 can be close to or away from each other;

[0029] The main structure of the frame 1 is aluminum profile (custom mold opening) and octagonal tube, and the weight is controlled at about 100 kilograms, which meets both structural strength and lightweight requirements.

[0030] like Figure 1 , Figure 2 As shown, the gripping mechanism 2 includes two gripping assemblies 21 arranged at intervals, and the gripping assembly 21 includes a mounting seat 211, a pneumatic shaft 212, a locker 213, a support plate 214 and a power member 215. The locker 213 is fixedly connected to the mounting seat 211, and the pneumatic shaft 212 is located above the support plate 214. The pneumatic shaft 212 is installed on the locker 213. The locker 213 can lock the pneumatic shaft 212 and release the fixation of the pneumatic shaft 212 after ventilation. The locker 213 is a pneumatic locking device. In the air-off state, the locker 213 can clamp and lock the pneumatic shaft 212; in the ventilation state, the locker 213 releases the clamping of the pneumatic shaft 212, and at this time, the pneumatic shaft 212 can fall under the influence of its own weight;

[0031] The power piece 215 is fixedly connected to the mounting base 211, and the output end of the power piece 215 is transmission-connected to the support plate 214. The power piece 215 is used to provide power for the rotation of the support plate 214. The support plate 214 is used to support the battery tray. The power piece 215 has a self-locking mechanism to achieve secondary fall protection. The power piece 215 can be a motor, which transmits power to the support plate 214 through gears or transmission belts and drives the support plate to rotate; the power piece 215 can be a hydraulic cylinder, which transmits power to the support plate 214 through a connecting rod mechanism and drives the support plate to rotate.

[0032] like Figure 1 , Figure 2 As shown, the support plate 214 and the mounting seat 211 are rotatably connected to increase the connection strength of the support plate 214 , which can improve the rotation stability of the support plate 214 on the one hand, and improve the bearing strength of the support plate 214 on the other hand.

[0033] like Figure 1 As shown, a laser rangefinder 216 for detecting whether the battery tray has fallen is installed on the locker 213. The laser rangefinder 216 can be used for product anti-collision alarm and product fall detection during the gripper transportation process. The laser rangefinder 216 can also be installed on the frame 1, or can also be fixed on the mounting base 211.

[0034] The grabbing mechanism 2 also includes a connecting rod 22, which is located between the two grabbing components 21. The end of the connecting rod 22 is fixedly connected to the mounting seat 211 of the corresponding grabbing component 21, and the end of the connecting rod 22 is fixedly connected to the corresponding grabbing component 221, so that the grabbing components 21 in the same grabbing mechanism 2 can move synchronously, avoiding errors in the moving distance between the two grabbing components 21.

[0035] like Figure 1 , Figure 4 As shown, the mounting seat 211 and the frame 1 are connected via a sliding assembly 23, and the sliding assembly 23 includes a guide rail 231 extending along the moving direction of the grab assembly 21 and a slider 232 matching the guide rail 231. The guide rail 231 is fixedly connected to the frame 1, and the slider 232 is fixedly connected to the mounting seat 211. The guide rail 231 and the slider 232 are slidably connected. The cooperation between the guide rail 231 and the slider 232 can increase the stability of the grab assembly 21 during adjustment. A Beili cylindrical guide rail lock is installed on the guide rail 231, and a Beili cylindrical guide rail lock is provided on the gripper. The guide rail lock is self-locking with an air-off force of 260KG, which can meet the compatibility of the pallet hanging ear thickness of 0-150mm.

[0036] like Figure 1 , Figure 3 As shown, a displacement sensor 11 for detecting the position of the grab assembly 21 and detecting the displacement of the pitch changing mechanism 4 is arranged on the frame 1 .

[0037] like Figure 1 , Figure 3 As shown, a quick-change disk 12 is installed on the frame 1, and the quick-change disk 12 is used to connect with the manipulator. The quick-change disk 12 can increase the installation and replacement efficiency of the quick-change gripper. The quick-change disk 12 makes the gripper more flexible and changeable. The manipulator is used to provide power for the movement of the quick-change gripper.

[0038] like Figure 1 , Figure 3 As shown, the quick-change gripper also includes a visual positioning sensor 3 for detecting the position of the battery tray.

[0039] like Figure 1 , Figure 3 , Figure 4As shown, the quick-change gripper also includes a pitch-changing mechanism 4, which is used to provide power for the two gripping mechanisms 2 to move closer to or away from each other. The pitch-changing mechanism 4 includes a driving member 41, a screw rod 42 and two nut seats 43. The driving member 41 is a motor. The output end of the driving member 41 is transmission-connected to the screw rod 42. The driving member 41 is used to provide power for the rotation of the screw rod 42. The screw rod 42 has two threaded segments arranged at intervals. The thread rotation directions of the two threaded segments are opposite. The threaded segments and the nut seats 43 correspond one-to-one. The threaded segments and the corresponding nut seats 43 are threadedly connected. The nut seats 43 and the gripping mechanisms 2 correspond one-to-one. The nut seats 43 and the corresponding gripping mechanisms 2 are fixedly connected. The gripping assembly 21 uses the pitch-changing mechanism 4 to achieve compatibility with battery trays with a width of 700-1700mm and a length of 1000-2500mm.

[0040] When used in the forward gripping mode, the visual positioning sensor 3 locates the position of the battery tray, the quick-change gripper moves to the top of the battery tray, and the support plate 214 rotates away from the battery tray under the drive of the power member 215, so that the support plate 214 can avoid the battery tray, and the locker 213 is ventilated to loosen the fixation of the pneumatic shaft 212. At this time, the pneumatic shaft 212 can move freely. The above process can be completed before the quick-change gripper is lowered or during the lowering process;

[0041] The quick-change gripper descends until one end of the pneumatic shaft 212 contacts one side of the ear of the battery tray, and then the power part 215 is pneumatically actuated again to rotate the support plate 214 toward the battery tray so that the support plate 214 is located below the ear of the battery tray 214. The quick-change gripper rises until the support plate 214 contacts the ear of the battery tray 214, and then the locker 213 cuts off the air to lock the pneumatic shaft 212, and the pneumatic shaft 212 and the support plate 214 complete the clamping of the battery tray.

[0042] Embodiment 2:

[0043] The technical feature that distinguishes Example 2 from Example 1 is: grabbing component 21.

[0044] like Figure 5 As shown, the gripping component 21 is an electric gripper, and the clamping force of a single gripper is 1800N, which can realize compatible gripping of battery trays with different wall thicknesses.

[0045] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A compatible quick-change gripper for a battery tray, characterized in that: It comprises a frame (1) and two grasping mechanisms (2) mounted on the frame (1), wherein the two grasping mechanisms (2) are arranged at intervals, and the two grasping mechanisms (2) can be moved closer to or farther from each other; The gripping mechanism (2) comprises two gripping assemblies (21) arranged at intervals. The gripping assembly (21) comprises a mounting seat (211), a pneumatic shaft (212), a locker (213), a support plate (214) and a power piece (215). The locker (213) is fixedly connected to the mounting seat (211). The pneumatic shaft (212) is located above the support plate (214). The pneumatic shaft (212) is mounted on the locker (213). The locker (213) can lock the pneumatic shaft (212) and release the fixation of the pneumatic shaft (212) after ventilation. The power piece (215) is fixedly connected to the mounting seat (211). The output end of the power piece (215) is transmission-connected to the support plate (214). The power piece (215) is used to provide power for the rotation of the support plate (214). The support plate (214) is used to support the battery tray.

2. The compatible quick-change gripper for the battery tray according to claim 1, characterized in that: The support plate (214) and the mounting seat (211) are rotatably connected.

3. The compatible quick-change gripper for the battery tray according to claim 1, characterized in that: The locker (213) is provided with a laser rangefinder (216) for detecting whether the battery tray has fallen off.

4. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: The gripping mechanism (2) further comprises a connecting rod (22), wherein the connecting rod (22) is located between the two gripping assemblies (21), and an end of the connecting rod (22) is fixedly connected to a mounting seat (211) of the corresponding gripping assembly (21).

5. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: The mounting seat (211) and the frame (1) are connected via a sliding assembly (23); the sliding assembly (23) comprises a guide rail (231) extending along the moving direction of the grab assembly (21) and a sliding block (232) matching the guide rail (231); the guide rail (231) and the frame (1) are fixedly connected; the sliding block (232) and the mounting seat (211) are fixedly connected; and the guide rail (231) and the sliding block (232) are slidably connected.

6. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: The frame (1) is provided with a displacement sensor (11) for detecting the position of the grabbing component (21).

7. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: A quick-change disk (12) is installed on the frame (1).

8. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: The quick-change gripper also includes a visual positioning sensor (3) for detecting the position of the battery tray.

9. The compatible quick-change gripper for a battery tray as claimed in claim 1, characterized in that: The quick-change gripper also includes a pitch-changing mechanism (4), the pitch-changing mechanism (4) including a mechanism for providing power for the two gripping mechanisms (2) to move closer to or farther from each other, the pitch-changing mechanism (4) including a driving member (41), a screw rod (42) and two nut seats (43), the output end of the driving member (41) being transmission-connected to the screw rod (42), the driving member (41) being used to provide power for the rotation of the screw rod (42), the screw rod (42) having two thread segments arranged at intervals, the thread rotation directions of the two thread segments being opposite, the thread segments corresponding to the nut seats (43) one by one, the thread segments being threadedly connected to the corresponding nut seats (43), the nut seats (43) corresponding to the gripping mechanisms (2) one by one, and the nut seats (43) being fixedly connected to the corresponding gripping mechanisms (2).

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