Deviation correction mechanism for battery PACK

Abstract

The utility model discloses a deviation correction mechanism for a battery PACK, which belongs to the technical field of battery PACKs and comprises two deviation correction units which are symmetrically arranged, each deviation correction unit comprises a rack, a positioning component, a jacking component, a deviation correction component and a correction component, and the positioning component, the jacking component, the deviation correction component and the correction component are arranged on the rack. The positioning assembly comprises a telescopic blocking air cylinder and a rotary pressing air cylinder, the telescopic blocking air cylinder is used for blocking the front portion of the transport vehicle, and the rotary pressing air cylinder is used for pressing the rear portion of the transport vehicle. The jacking assembly is used for jacking the tray and the battery pack on the tray; the deviation rectifying assembly comprises centering air cylinders, each deviation rectifying unit comprises at least two centering air cylinders, and the centering air cylinders of the deviation rectifying units on the two sides correspond to the two sides of the battery pack respectively. And the position of the battery PACK carried on the transport vehicle can be rectified and corrected, so that the accurate adjustment of the position of the battery PACK is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery PACK, and particularly relates to a deviation correction mechanism for a battery PACk. Background Art

[0002] When an AGV cart transports a battery PACK, although it has a certain positioning function for the battery PACK, its positioning accuracy is generally plus or minus 0.5 mm. In some cases, it can meet the processing requirements, but for some specific precision machining occasions, this positioning accuracy still needs to be further improved. Therefore, it is necessary to adjust through a jacking centering mechanism.

[0003] The existing jacking mechanism only has an axial positioning function and limited accuracy, and cannot further fine-tune the position of the battery PACK on the cart to improve the positioning and processing accuracy. And common precise positioning mechanisms cannot take into account the position accuracy of both the AGV cart and the battery pack at the same time. Summary of the Utility Model

[0004] In view of one or more of the above defects or improvement requirements in the prior art, the utility model provides a deviation correction mechanism for a battery PACK, which can correct and adjust the position of the battery PACK carried on a transport vehicle, so as to realize the fine adjustment of the position of the battery PACK.

[0005] To achieve the above object, the utility model provides a deviation correction mechanism for a battery PACK, which is characterized in that it includes two symmetrically arranged deviation correction units, and each deviation correction unit includes a frame and a positioning component, a jacking component, a deviation correction component and a correction component arranged on the frame;

[0006] The positioning component includes a telescopic blocking cylinder and a rotary pressing cylinder respectively arranged at the front end and the rear end of the frame along the moving direction of the transport vehicle, and the positioning components of the two-sided deviation correction units are arranged oppositely; the telescopic blocking cylinder is used to block the front of the transport vehicle, and the rotary pressing cylinder is used to press the rear of the transport vehicle;

[0007] The jacking component is located under the tray on the transport vehicle after the transport vehicle is positioned, and is used to jack up the tray and the battery pack on the tray;

[0008] The deviation correction component includes a centering cylinder. Each deviation correction unit includes at least two centering cylinders, and the centering cylinders of the two-sided deviation correction units are arranged oppositely and respectively correspond to both sides of the battery pack;

[0009] The calibration assembly includes end vertical rods and a pair of light sensors. End vertical rods are respectively provided at both ends of the frames of the two-sided deviation rectification and calibration units for arranging the pair of light sensors. The pair of light sensors on the diagonally opposite two end vertical rods respectively form a set of diagonal pair of light sensors for verifying the centering effect of the deviation rectification assembly.

[0010] As a further improvement of the present utility model, the lifting assembly includes a lifting cylinder, a trapezoidal slide, a moving guide rail, a rolling bearing, a bracket and a bull's eye bearing;

[0011] The lifting cylinder and the moving guide rail are longitudinally arranged on the frame. The telescopic end of the lifting cylinder is connected to a slider, and the slider is arranged on the moving guide rail and can move along it; at least two trapezoidal slides are provided on the slider. The top of the trapezoidal slide has an inclined surface, and a rolling bearing is provided on the inclined surface. At the same time, the rolling bearing is connected to the bottom of the bracket, and a number of bull's eye bearings are provided at intervals on the top of the bracket.

[0012] As a further improvement of the present utility model, the lifting assembly further includes a positioning pin. The positioning pin is arranged at one end of the bracket, and a positioning hole matching the positioning pin is provided at the bottom of the tray;

[0013] In the two deviation rectification and calibration units, the positioning pins on the brackets are located at the diagonal positions, that is, the positioning holes at the bottom of the tray are located at the diagonal positions.

[0014] As a further improvement of the present utility model, the deviation rectification assembly further includes a linear guide rail. The linear guide rail is arranged on the frame along the moving direction of the transport vehicle, and at least two centering cylinders are arranged on the linear guide rail.

[0015] As a further improvement of the present utility model, at least one middle vertical rod is further provided between the end vertical rods. A pair of light sensors is provided on the middle vertical rod. The middle vertical rods of the two-sided deviation rectification and calibration units are symmetrically arranged, and the pair of light sensors on the middle vertical rods on both sides form at least one set of transverse pair of light sensors.

[0016] As a further improvement of the present utility model, the number of the middle vertical rods and the transverse pair of light sensors is the same as the number of battery packs on the tray.

[0017] As a further improvement of the present utility model, the positioning assembly further includes a guide bar arranged on the frame along the moving direction of the transport vehicle. A cam follower is provided on the guide bar. The guide bars on the two-sided deviation rectification and calibration units are symmetrically arranged for guiding the transport vehicle.

[0018] As a further improvement of the present utility model, positioning pin shafts are provided on the tray, and each battery pack is connected to the tray through a positioning pin shaft.

[0019] Generally speaking, compared with the prior art, the above technical solution conceived by the present utility model has the following beneficial effects:

[0020] (1) The centering and correcting mechanism for battery PACK of the present utility model includes a positioning component, a lifting component, a centering component, and a correcting component. The positioning component can lock the position of the transport vehicle. The lifting component can reliably adjust the height of the tray and the battery pack to ensure its levelness, and the tray and the battery pack can be positioned through the positioning pin. The centering component can apply the same pressure to both sides of the battery pack, so that the battery pack is placed in the center of the tray, improving the positioning accuracy and meeting the requirements of subsequent high-precision processing. The correcting component can verify the centering effect and detect battery packs of wrong models to achieve the anti-fooling function.

[0021] (2) In the centering and correcting mechanism for battery PACK of the present utility model, in the centering component, the centering cylinder is arranged on the linear guide rail, so that the distance between the two centering cylinders can be adjusted to meet the centering requirements of battery packs of different specifications.

[0022] (3) The correcting component of the centering and correcting mechanism for battery PACK of the present utility model further includes a lateral light-sending and receiving unit, and through the lateral light-sending and receiving unit, it can be judged whether the battery pack on the tray is in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the use state of the centering and correcting mechanism for battery PACK according to an embodiment of the present utility model;

[0024] Figure 2 is a schematic diagram of the overall structure of the centering and correcting mechanism for battery PACK according to an embodiment of the present utility model;

[0025] Figure 3 is a schematic diagram of the structure of the centering and correcting unit involved in the centering and correcting mechanism for battery PACK according to an embodiment of the present utility model;

[0026] Figure 4 is a schematic diagram of another perspective of the centering and correcting unit involved in the centering and correcting mechanism for battery PACK according to an embodiment of the present utility model.

[0027] In all the drawings, the same reference numerals represent the same technical features. Specifically: 1. Battery pack; 2. Tray; 3. Transport vehicle; 4. Frame; 5. Guide bar; 6. Telescopic blocking cylinder; 7. Rotary pressing cylinder; 8. Lifting component; 9. Vertical rod; 10. Light-sending and receiving mechanism; 11. Centering cylinder; 12. Linear guide rail;

[0028] 81. Lifting cylinder; 82. Trapezoidal slide; 83. Moving guide rail; 84. Rolling bearing; 85. Bracket; 86. Ball eye bearing; 87. Positioning pin. Detailed implementation mode

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] As a preferred embodiment of the present utility model, as Figures 1 to 4 shown, the deviation correction mechanism for a battery PACK implemented by the present utility model includes two symmetrically arranged deviation correction units. Figure 3 and Figure 4 is a structural schematic diagram of one of the deviation correction units. Each deviation correction unit includes a frame 4 and a positioning component, a lifting component 8, a deviation correction component and a calibration component arranged on the frame 4. The transport vehicle 3 can move between the two deviation correction units. A tray 2 is provided on the transport vehicle 3, and the tray 2 is used to place one or more battery packs 1. Each battery pack 1 is connected to the tray 2 through a corresponding positioning pin. When the transport vehicle 3 moves to the lifting station between the two deviation correction units, the positioning component is used to position the transport vehicle; the lifting component 8 is located below the tray on the transport vehicle and is used to lift the tray 2 and the battery pack 1; the deviation correction component and the calibration component are respectively used to correct the deviation and calibration of the battery pack 1, improve its positioning accuracy, and meet the requirements of high-precision processing.

[0035] It should be noted that the two deviation correction units are connected by a transverse connecting rod to form an integral structure for the overall relocation of the deviation correction mechanism for the battery PACK. After moving the deviation correction mechanism for the battery PACK to the set position and completing the debugging, the transverse connecting rod can be removed.

[0036] Specifically, as Figure 3 shown, the positioning component of this embodiment includes a guide bar 5 arranged on the frame 4 along the moving direction of the transport vehicle. A cam follower is provided on the guide bar 5. The guide bars 5 on the two sides of the deviation correction units are symmetrically arranged and can guide the transport vehicle 3 of the battery pack. Under the combined action of the guide bars 5 on both sides, the lateral positioning of the transport vehicle can be achieved.

[0037] Further, the positioning component further includes a telescopic blocking cylinder 6 and a rotary pressing cylinder 7 provided on the rack 4. Along the moving direction of the transport vehicle 3, the telescopic blocking cylinder 6 and the rotary pressing cylinder 7 are respectively arranged at the front end and the rear end of the rack 4, and the movable ends of the telescopic blocking cylinders 6 and the rotary pressing cylinders 7 of the two-sided deviation correction unit are oppositely arranged. The telescopic blocking cylinder 6 is used to extend the blocking piece at the end to block the front of the transport vehicle 3 when the transport vehicle moves to the set position, restricting its forward path; the rotary pressing cylinder 7 is used to rotate the pressing piece at the end to the rear of the transport vehicle 3 and press the transport vehicle 3 when the transport vehicle moves to the set position. The blocking piece and the pressing piece of the telescopic blocking cylinder 6 and the rotary pressing cylinder 7 respectively abut against both ends in the moving direction of the transport vehicle 3, pressing and locking it. Under the combined action of the telescopic blocking cylinders 6 and the rotary pressing cylinders 7 at the front and rear ends, the longitudinal positioning of the transport vehicle can be achieved.

[0038] In this embodiment, as Figure 3 and Figure 4 shown, the lifting component 8 includes a lifting cylinder 81, a trapezoidal slide 82, a moving guide rail 83, a rolling bearing 84, a bracket 85, and a bull's-eye bearing 86. The lifting cylinder 81 and the moving guide rail 83 are longitudinally arranged on the rack 4, that is, the length direction of the moving guide rail, the telescopic direction of the lifting cylinder 81, and the moving direction of the transport vehicle are the same. The telescopic end of the lifting cylinder 81 is connected to a slider, and the slider is arranged on the moving guide rail 83 and can move along it under the action of the lifting cylinder 81; at least two trapezoidal slides 82 are provided on the slider, the top of the trapezoidal slide 82 has an inclined surface, and a rolling bearing 84 is provided on the inclined surface. At the same time, the rolling bearing 84 is connected to the bottom of the bracket 85. In addition, a number of bull's-eye bearings 86 are provided at intervals on the top of the bracket 85.

[0039] When the transport vehicle 3 moves into place, the two-sided lifting components 8 are located below the tray 2. Under the extension action of the two-sided lifting cylinders 81, the trapezoidal slides 82 move along the moving guide rail 83. At the same time, the rolling bearing 84 can climb in height on the inclined surface of the trapezoidal slide 82, driving the bracket 85 and the bull's-eye bearing 86 to rise as a whole, so as to lift the tray 2 and the battery pack 1 on the tray, separating the tray 2 and the battery pack 1 from the transport vehicle 3. Similarly, under the contraction action of the two-sided lifting cylinders 81, the bracket 85 and the bull's-eye bearing 86 can be driven to descend to the initial position.

[0040] Further, the lifting assembly 8 further includes a positioning pin 87. The positioning pin 87 is provided at one end of the bracket 85. Correspondingly, a positioning hole matching the positioning pin 87 is provided at the bottom of the tray 2. Among the two deviation correction units, the positioning pins 87 on the bracket 85 are located at diagonal positions, that is, the positioning holes at the bottom of the tray 2 are located at diagonal positions. A corresponding lifting cylinder is provided at the bottom of the positioning pin 87 for realizing the lifting of the positioning pin 87. In the lifting assembly 8, the tray is lifted by the bull's-eye bearing 86 on the bracket 85, which can ensure the accuracy of the tray 2 on the horizontal plane; further, after the bracket 85 is lifted, the positioning pin 87 rises under the action of the cylinder. Combining with the fine adjustment of the bull's-eye bearing 86 in the horizontal plane, the positioning pin 87 on the bracket 85 can extend into the positioning hole at the bottom of the tray 2, thereby realizing the positioning of the tray 2.

[0041] As Figure 1 , 2 , as shown in FIG. 4, the deviation correction assembly of the embodiment of the present invention includes a centering cylinder 11. Each deviation correction unit includes at least two centering cylinders 11, and the telescopic ends of the centering cylinders 11 on both sides are oppositely arranged, corresponding to both sides of the battery pack 1 respectively. The same pressure is applied from both sides of the battery pack 1. Under the push of the centering cylinders 11 on both sides, the battery pack 1 can rotate along its positioning pin shaft with the tray 2, and finally the battery pack 1 is placed in the center on the tray 2, improving the positioning accuracy and meeting the requirements of subsequent high-precision processing.

[0042] Preferably, the deviation correction assembly further includes a linear guide rail 12. The linear guide rail 12 is arranged on the frame 4 along the longitudinal direction (the moving direction of the transport vehicle). At least two centering cylinders 11 are arranged on the linear guide rail 12, so as to be able to adjust the distance between adjacent centering cylinders 11, thereby adapting to different sizes of battery packs 1.

[0043] It can be understood that when the lifting assembly 8 lifts the tray 2 and the battery panel 1, the battery pack 1 and the centering cylinder 11 need to be correspondingly arranged on the same horizontal plane, so that the centering cylinder 11 can contact the side of the battery pack 1 when it extends.

[0044] In this embodiment, as Figures 1 to 4 shown, the correction assembly includes a vertical rod 9 and an opposed light mechanism 10. End vertical rods are respectively provided at both ends of the frames 4 of the two-sided deviation correction units for arranging the opposed light mechanism 10. The opposed light mechanisms 10 on the two diagonal end vertical rods respectively form a set of diagonal opposed light units, and emit visible light relatively. The corrected battery pack 1 is corrected through the two sets of diagonal opposed light units. If the battery pack 1 can block the emitted visible light on the two diagonals, the opposed light signal cannot be formed, indicating that the position and model of the battery pack 1 are correct; otherwise, it indicates that the position of the battery pack needs to be further adjusted, or the battery pack model is incorrect, or the height adjustment of the opposed light mechanism 10 is incorrect.

[0045] Preferably, at least one middle vertical rod is further provided between the end vertical rods. A light-sending and receiving mechanism 10 is provided on the middle vertical rod. The middle vertical rods of the two-sided deviation rectification and correction units are symmetrically arranged, and the light-sending and receiving mechanisms 10 on the middle vertical rods on both sides form at least one set of horizontal light-sending and receiving units. The number of the middle vertical rods and the horizontal light-sending and receiving units is the same as the number of battery packs 1 on the tray 2. Whether the battery pack 1 is in place is judged through horizontal light-sending and receiving signals.

[0046] It can be understood that in the correction assembly, the installation position of the light-sending and receiving mechanism 10 on the vertical rod needs to correspond to the battery pack 1.

[0047] The working process of the deviation rectification and correction mechanism for the battery PACK according to the embodiment of the present invention is as follows:

[0048] The battery pack 1 is placed on the tray 2 of the transport vehicle 3, and the transport vehicle 3 moves to the jacking station between the two deviation rectification and correction units. During the process of the transport vehicle 3 entering the jacking station, the transport vehicle 3 is guided by two rows of guiding strips 5 fixed on the frame 4. When the transport vehicle moves to the set position, the telescopic blocking cylinder 6 extends the blocking piece at the end to block the front of the transport vehicle 3, and rotates the pressing piece at the end of the rotary pressing cylinder 7 to the rear of the transport vehicle 3 and presses the transport vehicle 3 to position the transport vehicle horizontally and longitudinally.

[0049] After positioning the transport vehicle at the jacking station, the jacking assembly 8 starts to work. The jacking cylinder 81 extends, so that the rolling bearing 84 climbs in height on the inclined surface of the trapezoidal slide 82, driving the bracket 85 and the bull's-eye bearing 86 to rise as a whole, jacking up the tray 2 and the battery pack 1 on the tray, and separating the tray 2 and the battery pack 1 from the transport vehicle 3. After the bracket 85 is jacked up, the positioning pin 87 rises under the action of the cylinder. Combining with the fine adjustment of the bull's-eye bearing 86 in the horizontal plane, the positioning pin 87 on the bracket 85 extends into the positioning hole at the bottom of the tray 2, thereby positioning the tray 2.

[0050] After the jacking assembly 8 jacks up the tray 2 and the battery pack 1 in place, the distance between the centering cylinders 11 is adjusted according to the model of the battery pack 1, and one side of the centering cylinder 11 is controlled to extend, and then the other side of the centering cylinder 11 is controlled to extend, applying the same pressure to both sides of the battery pack 1, so that the battery pack 1 is placed in the center of the tray 2, improving the positioning accuracy and meeting the requirements of subsequent high-precision processing.

[0051] Finally, it is judged whether the battery pack 1 is in place through the horizontal light-sending and receiving unit, and the centering effect is verified through the diagonal light-sending and receiving unit to judge whether the position and model of the battery pack 1 are correct. If the correction is correct, the deviation rectification and correction work of the battery pack is completed, and the position fine adjustment of the battery pack is completed.

[0052] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A deviation correction mechanism for a battery PACK, characterized in that, It includes two deviation rectification and correction units arranged symmetrically. Each deviation rectification and correction unit includes a frame and a positioning component, a jacking component, a deviation rectification component, and a correction component arranged on the frame; The positioning component includes a telescopic blocking cylinder and a rotary pressing cylinder respectively arranged at the front end and the rear end of the frame along the moving direction of the transport vehicle. The positioning components of the two deviation rectification and correction units on both sides are arranged oppositely; the telescopic blocking cylinder is used to block the front of the transport vehicle, and the rotary pressing cylinder is used to press the rear of the transport vehicle; The jacking component is located under the pallet on the transport vehicle after the transport vehicle is positioned, and is used to jack up the pallet and the battery pack on the pallet; The deviation rectification component includes a centering cylinder. Each deviation rectification and correction unit includes at least two centering cylinders, and the centering cylinders of the two deviation rectification and correction units on both sides are arranged oppositely, corresponding to both sides of the battery pack respectively; The correction component includes an end vertical rod and a light curtain pair. End vertical rods are respectively arranged at both ends of the frames of the two deviation rectification and correction units, and are used to set the light curtain pair. The light curtain pairs on the two diagonal end vertical rods respectively form a set of diagonal light curtain pairs, which are used to verify the centering effect of the deviation rectification component.

2. The deviation correction mechanism for the battery PACK according to claim 1, wherein, The jacking component includes a jacking cylinder, a trapezoidal slide table, a moving guide rail, a rolling bearing, a bracket, and a ball bearing; The jacking cylinder and the moving guide rail are longitudinally arranged on the frame. The telescopic end of the jacking cylinder is connected to a slider, and the slider is arranged on the moving guide rail and can move along it; at least two trapezoidal slide tables are arranged on the slider. The top of the trapezoidal slide table has an inclined surface, and a rolling bearing is arranged on the inclined surface. At the same time, the rolling bearing is connected to the bottom of the bracket, and several ball bearings are arranged at intervals on the top of the bracket.

3. The deviation correction mechanism for the battery PACK according to claim 2, wherein, The jacking component further includes a positioning pin, and the positioning pin is arranged at one end of the bracket. A positioning hole matching the positioning pin is arranged at the bottom of the pallet; Among the two deviation rectification and correction units, the positioning pins on the brackets are located at diagonal positions, that is, the positioning holes at the bottom of the pallet are located at diagonal positions.

4. The deviation correction mechanism for the battery PACK according to any one of claims 1-3, characterized in that, The deviation rectification component further includes a linear guide rail. The linear guide rail is arranged on the frame along the moving direction of the transport vehicle, and at least two centering cylinders are arranged on the linear guide rail.

5. The deviation correction mechanism for the battery PACK according to any one of claims 1-3, characterized in that, At least one middle vertical rod is further arranged between the end vertical rods. A light curtain pair is arranged on the middle vertical rod. The middle vertical rods of the two deviation rectification and correction units on both sides are symmetrically arranged, and the light curtain pairs on the middle vertical rods on both sides form at least one set of horizontal light curtain pairs.

6. The deviation correction mechanism for the battery PACK according to claim 5, characterized in that, The number of the middle vertical rods and the horizontal light curtain pairs is the same as the number of battery packs on the pallet.

7. The deviation correction mechanism for the battery PACK according to any one of claims 1-3 or 6, characterized in that, The positioning component further includes a guide bar arranged on the frame along the moving direction of the transport vehicle. A cam follower is arranged on the guide bar. The guide bars on the two deviation rectification and correction units on both sides are symmetrically arranged and are used to guide the transport vehicle.

8. The deviation correction mechanism for a battery PACK according to any one of claims 1-3 or 6, characterized in that, Positioning pins are arranged on the pallet, and each battery pack is connected to the pallet through a positioning pin.

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