Workpiece positioning device

Abstract

The utility model relates to the technical field of lithium battery production, and particularly discloses a workpiece positioning device which comprises a battery cell positioning jig and a positioning mechanism, and the positioning mechanism is arranged on one side of the battery cell positioning jig. The battery cell positioning jig comprises a plurality of battery cell placing tables, and placing areas for placing battery cells are arranged on the plurality of battery cell placing tables; the positioning mechanism comprises a supporting frame, a first moving module is arranged on the supporting frame, and a sliding plate is connected to the moving end of the first moving module so as to drive the sliding plate to be close to or away from the battery cell placing table; a plurality of positioning modules used for positioning the battery cells are arranged on the sliding plate, each positioning module comprises a driving assembly and a positioning assembly, and the driving assemblies are in transmission connection with the positioning assemblies. The battery cell positioning device has the following technical effects that a plurality of battery cells are positioned at one time, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production, and in particular relates to a workpiece positioning device. Background Art

[0002] When welding the connecting pieces of lithium batteries, the cells need to be positioned, and then clamped or released.

[0003] In the existing workpiece positioning device, it mainly relies on the elastic force of the spring to press and position the battery cell. However, the battery cell positioned by relying on the spring force cannot be guaranteed to be centered, and the positioning accuracy is inaccurate, which seriously affects the production quality of the subsequent process. Moreover, it can only position one battery cell at a time, and the production efficiency is low. Utility Model Content

[0004] In order to solve the deficiencies of the prior art, the utility model provides a workpiece positioning device.

[0005] The technical effects to be achieved by the utility model are achieved through the following technical aspects:

[0006] The utility model provides a workpiece positioning device, comprising a battery core positioning fixture and a positioning mechanism, wherein the positioning mechanism is arranged on one side of the battery core positioning fixture;

[0007] The battery cell positioning fixture comprises a plurality of battery cell placement tables, and a plurality of the battery cell placement tables are provided with placement areas for placing the battery cells;

[0008] The positioning mechanism comprises a support frame, a first moving module is arranged on the support frame, and a sliding plate is connected to the moving end of the first moving module to drive the sliding plate to move closer to or away from the battery cell placement platform;

[0009] The sliding plate is provided with a plurality of positioning modules for positioning the battery cells. The positioning modules include a driving component and a positioning component. The driving component is transmission-connected with the positioning component to position the battery cells in the placement area.

[0010] In some embodiments, the driving assembly includes a first driving member and a second driving member, the positioning assembly includes a first positioning member and a second positioning member, the first driving member is in transmission connection with the first positioning member, so as to drive the battery cell on the placement area to move along the first direction through the first positioning member;

[0011] The second driving member is connected to the second positioning member, so as to drive the battery cell on the placement area to move along the second direction through the second positioning member;

[0012] The first direction and the second direction are perpendicular.

[0013] In some embodiments, a protrusion is provided on one end of the first positioning member and / or the second positioning member facing the placement area to form a positioning block.

[0014] In some embodiments, the first driving member is a first cylinder, and first positioning members are disposed on two sides of the first cylinder to make the positioning members approach or move away;

[0015] The second driving member is a second cylinder, and the second cylinder is arranged on one side of the first cylinder.

[0016] In some embodiments, a baffle for positioning the battery cell is further provided on one side of the placement area, and the first positioning member drives the battery cell to move along a first direction to abut against the baffle; and / or

[0017] The second positioning member drives the battery core to move along a second direction and abut against the baffle.

[0018] In some embodiments, a pressing plate is provided on the battery cell placement platform, and a rotating driving member is transmission-connected to the pressing plate, and the rotating driving member drives the pressing plate to swing to limit the battery cells on the placement area.

[0019] In some embodiments, at least two placement areas are provided on the battery cell placement table, and at least four pressing plates are provided, and the four pressing plates are respectively provided on both sides of the placement area.

[0020] In some embodiments, a magnetic suspension guide rail is provided at the bottom of the battery cell placement platform to drive the battery cell placement platform to move along the length direction of the sliding plate.

[0021] In some embodiments, the rotary driving member is a rotary pressing cylinder, and an air pipe interface is provided on the rotary pressing cylinder.

[0022] In some embodiments, a second movable module is also provided on the support frame, and a connecting rod is connected to the output end of the second movable module. The connecting rod is provided with a plurality of air outlets corresponding to the trachea interface, and the second movable module drives the connecting rod to move so that the air outlet is connected to the trachea interface.

[0023] In summary, the utility model has the following benefits:

[0024] The utility model provides a positioning mechanism and a battery cell placement table. The positioning mechanism can perform secondary positioning on the battery cells on the battery cell placement table, thereby improving the accuracy of battery cell positioning. The battery cells can be positioned to any range by setting the stroke of the driving component. Compared with the existing spring positioning method, this setting has more accurate positioning. By setting the positioning modules and the number of battery cell placement areas, multiple battery cells can be positioned at one time, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the workpiece positioning device in the embodiment of the present application close to the side of the battery cell placement table.

[0026] Figure 2 It is a schematic diagram of the structure of the workpiece positioning device close to the second moving module in an embodiment of the present application.

[0027] Figure 3 It is a structural schematic diagram of the positioning mechanism in the embodiment of the present application.

[0028] Figure 4 It is a structural schematic diagram of the battery cell positioning fixture in the embodiment of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the connecting rod in the embodiment of the present application.

[0030] Markings in the figure:

[0031] 10. Cell positioning jig; 20. Positioning device;

[0032] 1. Battery cell placement table; 110. Placement area; 120. Baffle; 130. Press plate; 140. Rotating drive member; 150. Air pipe interface;

[0033] 2. Support frame; 210. First moving module; 220. Sliding plate; 230. Positioning module; 231. First driving member; 232. Second driving member; 233. First positioning member; 234. Second positioning member; 235. Positioning block; 240. Second moving module; 250. Connecting rod; 260. Air outlet. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. The described embodiment is a contact part embodiment of the utility model, not all embodiments.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please refer to the attached Figure 1-3, this embodiment provides a workpiece positioning device for positioning a battery cell, comprising a battery cell positioning fixture 10 and a positioning mechanism 20, wherein the positioning mechanism 20 is disposed on one side of the battery cell positioning fixture 10;

[0038] The battery cell positioning fixture 10 includes a plurality of battery cell placement tables 1, and the battery cell placement tables 1 are block-shaped. The number of battery cell placement tables 1 can be set to 1 / 2 / 3 / 4 or the like according to actual needs. The preferred number is the same as the positioning module 230 of the positioning mechanism 20, and multiple battery cells can be positioned at one time to improve production efficiency. A placement area 110 for placing battery cells is provided on the plurality of battery cell placement tables 1, wherein the placement area 110 is a pre-set battery cell placement position, which can be set by engineers according to actual needs. The specific position is not specifically limited in this embodiment, and is provided on a side of the battery cell placement table 1 close to the working position of the positioning mechanism 20.

[0039] The positioning mechanism 20 is used to position the battery cell on the battery cell placement platform 1, and includes a support frame 2, on which a first moving module 210 is arranged, and a sliding plate 220 is connected to the moving end of the first moving module 210 to drive the sliding plate 220 to move closer to or away from the battery cell placement platform 1; wherein the first moving module 210 can be a cylinder, a screw guide rail, a linear moving module, a gear rack, etc., and this embodiment is not limited here, as long as it can drive the sliding plate 220 to move. Exemplarily, the first moving module 210 is a cylinder and a guide rail, wherein the cylinder and the guide rail are both arranged on the support frame 2, and the guide rail is arranged on both sides of the cylinder, and the guide rail is arranged along the direction of the battery cell positioning fixture 10. In this embodiment, it is arranged vertically, and the sliding plate 220 is connected to the output end of the cylinder and the movable end on the guide rail, and the sliding plate 220 is driven to move toward the battery cell positioning fixture 10 by the extension and contraction of the cylinder, wherein the guide rail guides to make its movement more precise.

[0040] The sliding plate 220 is provided with a plurality of positioning modules 230 for positioning the battery cells. The number of the positioning modules 230 can be set to 1 / 2 / 3 / 4 or the like according to actual needs. The preferred number is the same as that of the battery cell placement table 1, and multiple battery cells can be positioned at one time to improve production efficiency. The positioning module 230 includes a driving component and a positioning component, and the driving component is connected to the positioning component by transmission to position the battery cells in the placement area 110. The positioning component is driven to move by the driving component, thereby driving the battery cells on the placement area 110 to move to the specified position. This method is simple to operate and has a good positioning effect.

[0041] When in use, the battery cell is placed on the battery cell placement table 1, and the first moving module 210 drives the sliding plate 220 to move downward, so that the positioning module 230 on the sliding plate 220 moves to a relative position. At this time, the positioning component can contact the battery cell, and the movement of the positioning component is controlled by the driving component, thereby controlling the movement of the battery cell to complete the positioning function of the battery cell.

[0042] By setting the positioning mechanism 20 and the battery cell placement table 1, the positioning mechanism 20 can perform secondary positioning on the battery cells on the battery cell placement table 1, thereby improving the accuracy of battery cell positioning; and by setting the stroke of the driving component, the battery cells can be positioned to any range. Compared with the existing spring positioning method, this setting is more accurate in positioning. By setting the positioning module 230 and the number of battery cell placement areas 110, multiple battery cells can be positioned at one time, thereby improving production efficiency.

[0043] Example 2

[0044] The difference between Example 2 and Example 1 is that the workpiece positioning mechanism 20 is further optimized in this example. Figure 3 As shown, in some embodiments, the driving assembly includes a first driving member 231 and a second driving member 232, and the positioning assembly includes a first positioning member 233 and a second positioning member 234. The first driving member 231 is connected to the first positioning member 233 in a transmission manner so as to drive the battery cell on the placement area 110 to move along the first direction through the first positioning member 233; the second driving member 232 is connected to the second positioning member 234 so as to drive the battery cell on the placement area 110 to move along the second direction through the second positioning member 234; the first direction and the second direction are perpendicular. Among them, the first driving member 231 and the second driving member 232 can be cylinders, screw guide rails, linear motion modules, gear racks, etc., respectively, and this embodiment is not limited here, and it only needs to meet that it can drive the first positioning member 233 and the second positioning member 234 to move. The first positioning member 233 and the second positioning member 234 can be positioning blocks 235, positioning plates, etc. Exemplarily, in a plane, the first direction can be from left to right, the second direction can be from front to back, the first direction and the second direction are perpendicular, and the battery cell is positioned in the plane. The first driving member 231 and the second driving member 232 can move the battery cell arbitrarily in a plane to position it. Compared with the existing positioning method using a spring, this positioning process is more accurate and reliable, and positioning at any position can be achieved.

[0045] Further, the first driving member 231 is a first cylinder, and first positioning members 233 are arranged on both sides of the first cylinder to make the positioning members approach or move away; the second driving member 232 is a second cylinder, and the second cylinder is arranged on one side of the first cylinder. Among them, the first cylinder is a pneumatic finger, and the first positioning members 233 are arranged at both ends of the first cylinder. The first positioning member 233 can be a first positioning rod. Through the pneumatic finger, the battery cell can be quickly positioned in the first direction. A second cylinder is arranged below the pneumatic finger, and the second cylinder positions the battery cell in the second direction. During use, the pneumatic finger drives the first positioning member 233 to move relatively, and the battery cell is positioned in the first direction. At this time, the battery cell is pushed to move in the second direction by the second cylinder below it to complete the positioning of the battery cell. This process is accurate and fast in positioning, and because the pneumatic finger can clamp the battery cell, at this time, when positioning in the second direction, the battery cell is not easy to swing, which further improves the positioning efficiency and positioning accuracy. The cylinder adjustment screw can be selected with a fine thread screw, which can control the accuracy within 0.5mm and improve the positioning accuracy.

[0046] In some embodiments, a protrusion is provided on one end of the first positioning member 233 and / or the second positioning member 234 facing the placement area 110 to form a positioning block 235. The positioning block 235 is in a rectangular parallelepiped shape, so that the first positioning member 233 or the second positioning member 234 can be in a clamp shape to improve the positioning efficiency.

[0047] Example 3

[0048] The difference between Example 3 and Example 1 is that the present embodiment further optimizes the cell placement platform 1 in the cell positioning device, such as Figure 4-5 As shown, a baffle 120 for positioning the battery cell is also provided on one side of the placement area 110, and the first positioning member 233 drives the battery cell to move in the first direction and abut against the baffle 120; and / or the second positioning member 234 drives the battery cell to move in the second direction and abut against the baffle 120. The baffle 120 is used to limit the battery cell. The baffle 120 can be placed on one side of the placement area 110. When the battery cell moves in the first direction, the baffle 120 blocks the battery cell, and the positioning of the battery cell in the first direction is completed. Or when the battery cell moves in the second direction, the baffle 120 blocks the battery cell, and the positioning of the battery cell in the second direction is completed. This setting can improve the accuracy and efficiency of positioning.

[0049] In some embodiments, a pressing plate 130 is provided on the battery cell placement table 1, and a rotating driving member 140 is transmission-connected to the pressing plate 130. The rotating driving member 140 drives the pressing plate 130 to swing to limit the battery cells on the placement area 110. Among them, the pressing plate 130 is used to fix the battery cells after the placement area 110 is adjusted to prevent them from shifting in subsequent processes. The rotating driving member 140 can be a driving device such as a motor or a rotating cylinder. When the battery cells are placed on the placement area 110 and are ready to be positioned, the pressing plate 130 is on both sides of the positioning plate. After the battery cells are positioned, the pressing plate 130 rotates under the drive of the rotating driving member 140 to limit the battery cells and clamp or unclamp the battery cells. Among them, the preferred rotation angle of the pressing plate 130 is 90 degrees.

[0050] In some embodiments, at least two placement areas 110 are provided on the battery cell placement table 1, and at least four pressure plates 130 are provided, and the four pressure plates 130 are respectively provided on both sides of the placement area 110. By providing multiple pressure plates 130, the two sides of the battery cell can be limited to make it less likely to move. Among them, one rotating drive member 140 can control one pressure plate 130, or one rotating drive member 140 can control multiple pressure plates 130, which is not specifically limited in this embodiment. Providing multiple placement areas 110 can also open or clamp multiple battery cells at a time. This embodiment does not limit the number of placement areas 110, thereby reducing manufacturing costs.

[0051] In some embodiments, a magnetic levitation rail is provided at the bottom of the battery cell placement table 1 to drive the battery cell placement table 1 to move along the length direction of the sliding plate 220. The magnetic levitation rail can drive the battery cell placement table 1 to move and move it to the next workstation. Exemplarily, two battery cell placement areas 110 are provided on the battery cell placement table 1. At this time, the positioning mechanism 20 first positions the battery cells in the first placement area 110. After the positioning is completed, the magnetic levitation rail drives the battery cell placement table 1 to move and places the battery cells in the second placement area 110 at the working position of the positioning mechanism 20. At this time, the battery cells in the second placement area 110 are positioned. Since multiple positioning mechanisms 20 are provided and multiple battery cell placement tables 1 are provided, at this time, each movement can perform a clamping and positioning operation on multiple battery cells to improve production efficiency.

[0052] In some embodiments, the rotary drive member 140 is a rotary clamping cylinder, and the rotary clamping cylinder is provided with an air pipe interface 150. The rotary clamping cylinder has high flexibility and reliability, and the rotary clamping cylinder can be arranged at the lower side of the placement area 110, and the air pipe interface 150 is arranged on the outer side of the battery cell positioning fixture 10, which is convenient for subsequent air path docking.

[0053] In some embodiments, a second moving module 240 is also provided on the support frame 2, and a connecting rod 250 is connected to the output end of the second moving module 240, and a plurality of air outlets corresponding to the trachea interface 150 are provided on the connecting rod 250, and the second moving module 240 drives the connecting rod 250 to move so that the air outlet is connected to the trachea interface 150. Among them, the second moving module 240 can be a cylinder, a screw guide rail, a linear moving module, a gear rack, etc., and this embodiment is not limited here, as long as it can drive the connecting rod 250 to move. Taking the cylinder as an example, the cylinder drives the connecting rod 250 to move by telescoping, so that the air outlet on the connecting rod 250 is connected to the trachea interface 150 on the battery cell placement table 1, and at this time, the rotating clamping cylinder drives the pressing plate 130 to press the battery cell or drives the pressing plate 130 to release the battery cell.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0056] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the present utility model, unless otherwise clearly specified and limited, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being above, above, and above the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being below, below, and below the second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A workpiece positioning device, characterized in that: It comprises a battery cell positioning jig and a positioning mechanism, wherein the positioning mechanism is arranged on one side of the battery cell positioning jig; The battery cell positioning fixture comprises a plurality of battery cell placement tables, and a plurality of the battery cell placement tables are provided with placement areas for placing the battery cells; The positioning mechanism comprises a support frame, a first moving module is arranged on the support frame, and a sliding plate is connected to the moving end of the first moving module to drive the sliding plate to move closer to or away from the battery cell placement platform; The sliding plate is provided with a plurality of positioning modules for positioning the battery cells. The positioning modules include a driving component and a positioning component. The driving component is transmission-connected with the positioning component to position the battery cells in the placement area.

2. The workpiece positioning device according to claim 1, characterized in that: The driving assembly includes a first driving member and a second driving member, the positioning assembly includes a first positioning member and a second positioning member, the first driving member is in transmission connection with the first positioning member, so as to drive the battery cell on the placement area to move along the first direction through the first positioning member; The second driving member is connected to the second positioning member, so as to drive the battery cell on the placement area to move along the second direction through the second positioning member; The first direction and the second direction are perpendicular.

3. The workpiece positioning device according to claim 2, characterized in that: A protrusion is arranged on one end of the first positioning member and / or the second positioning member facing the placement area to form a positioning block.

4. The workpiece positioning device according to claim 2, characterized in that: The first driving member is a first cylinder, and first positioning members are disposed on two sides of the first cylinder to move the positioning members closer or farther away; The second driving member is a second cylinder, and the second cylinder is arranged on one side of the first cylinder.

5. The workpiece positioning device according to claim 2, characterized in that: A baffle for positioning the battery cell is further provided on one side of the placement area, and the first positioning member drives the battery cell to move along a first direction and abut against the baffle; and / or The second positioning member drives the battery core to move along a second direction and abut against the baffle.

6. The workpiece positioning device according to claim 1, characterized in that: The battery cell placement platform is provided with a pressing plate, and a rotating driving member is transmission-connected to the pressing plate. The rotating driving member drives the pressing plate to swing so as to limit the battery cells on the placement area.

7. The workpiece positioning device according to claim 6, characterized in that: The battery cell placement table is provided with at least two placement areas, and at least four pressing plates are provided, and the four pressing plates are respectively provided at two sides of the placement area.

8. The workpiece positioning device according to claim 6, characterized in that: A magnetic suspension guide rail is arranged at the bottom of the battery cell placement platform to drive the battery cell placement platform to move along the length direction of the sliding plate.

9. The workpiece positioning device according to claim 6, characterized in that: The rotary driving member is a rotary pressing cylinder, and an air pipe interface is arranged on the rotary pressing cylinder.

10. The workpiece positioning device according to claim 9, characterized in that: A second movable module is also provided on the support frame, and a connecting rod is connected to the output end of the second movable module. The connecting rod is provided with a plurality of air outlets corresponding to the trachea interface, and the second movable module drives the connecting rod to move so that the air outlet is connected to the trachea interface.

Images