Battery top cover positioning tool

Abstract

The utility model discloses a battery top cover positioning tool, which is used for positioning a battery top cover and comprises a base, two symmetrical seat bodies capable of relatively displacing are arranged on the base, and two longitudinal clamping parts and a transverse clamping part are arranged on each seat body. The two transverse clamping parts are driven by respective base bodies to relatively move so as to clamp a first opposite side of the battery top cover, and the two longitudinal clamping parts are positioned on one side of the battery top cover and can relatively move along the base bodies, so that the four longitudinal clamping parts are jointly used for clamping a second opposite side of the battery top cover; wherein one seat body is provided with two sliding seats which are arranged in parallel and can transversely move relative to the seat body, and the sliding seats are respectively provided with an inductor which is used for inducting the position of a liquid injection hole in a battery top cover. The battery top cover clamping tool is universal and suitable for clamping battery top covers of different sizes and models.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery top cover positioning fixture. Background Technology

[0002] Lithium-ion batteries are one of the main power sources for electric vehicles. The top cover of a lithium-ion battery is a crucial component. During the production process, the top cover requires various processing steps, such as laser marking, welding of plastic parts, and welding of terminals. To facilitate processing, the top cover needs to be positioned. The positioning of the top cover is related to the stability of its processing, thus requiring a stable and accurate tooling fixture for positioning the top cover. Utility Model Content

[0003] The purpose of this utility model is to design a battery top cover positioning fixture to overcome the shortcomings of the above-mentioned technology.

[0004] This utility model designs a battery top cover positioning fixture for positioning a battery top cover. It includes a base and two seats. The base has transversely distributed guide rails, and each seat has a slider that slides with the guide rails. The base has a first lead screw running in the same direction as the guide rails, with opposite threaded sections at both ends. The two seats are connected to the two ends of the first lead screw by first nuts. Each end of the first lead screw has a first driving end that drives its rotation, allowing the two seats to move relative to each other along the lead screw. Each seat has two longitudinal clamping parts and one transverse clamping part. The two transverse clamping parts move relative to each other under the influence of their respective seats to clamp the first pair of sides of the battery top cover. The two longitudinal clamping parts are located on one side of the battery top cover and can move relative to each other along the seats, so that all four longitudinal clamping parts can jointly clamp the second pair of sides of the battery top cover. One seat has two parallel sliding seats that can move laterally relative to the seat. Each sliding seat has a sensor for sensing the position of the liquid injection hole on the battery top cover.

[0005] Preferably, each of the seats is provided with a longitudinal second lead screw, and the two ends of the second lead screw also form opposite thread sections. The two longitudinal clamping parts are respectively connected to the two ends of the same second lead screw by a second nut. The two ends of the second lead screw are provided with a second driving end to drive the second lead screw to rotate.

[0006] In a further optimization, the lateral clamping part includes a first mounting base connected to the base body. The first mounting base has a first mounting groove, a first mounting block is inserted into the first mounting groove, and a first through hole is formed on the first mounting block. A lateral clamping wheel is rotatably connected to the first through hole through a first pin.

[0007] Further optimization includes a second mounting seat connected to a second nut, a second mounting groove on the second mounting seat, a second mounting block inserted in the second mounting groove, a second through hole on the second mounting block, a longitudinal clamping wheel rotatably connected in the second through hole via a second pin, a sliding groove on the seat body, and the second mounting seat located in the sliding groove to form a limiting position with the sliding groove, so that the second mounting seat can be displaced relative to the seat body under the drive of the second lead screw.

[0008] Further optimization includes two side blocks and a bottom block connected between the two side blocks. The two side blocks are respectively slidably engaged with corresponding guide rails by sliders. The first nut is connected to the bottom of the bottom block. The sliding groove is opened on the inner side of the bottom block and extends longitudinally. A groove is opened on the outer side of the bottom block, and the first mounting seat is disposed in the groove.

[0009] Further optimization involves the groove being arranged laterally with one end penetrating the outer side of the base. The groove contains two detachable and laterally symmetrically distributed first positioning blocks. The two first positioning blocks, positioned opposite each other, form a first side groove between the groove and the bottom surface of the groove to limit the side of the first mounting base.

[0010] Further optimization involves providing detachable and longitudinally symmetrically distributed second positioning blocks on both sides of the slide groove on the bottom block, with each second positioning block forming a second side groove with the bottom block to limit the side of the second mounting seat.

[0011] Further optimization involves providing a laterally extending mounting rod on the base. One end of the mounting rod is connected to the bottom of one of the base blocks, while the other end is suspended or connected to another base. The sliding seat has mounting holes, through which it is inserted into the mounting rod and can move laterally along the mounting rod. The sliding seat also has a first screw hole, in which a fastening bolt is fitted, allowing the sliding seat to be positioned on the mounting rod by the corresponding fastening bolt.

[0012] In a further optimization, the mounting rod is provided with a stepped surface near the bottom block for limiting, so as to prevent the sliding seat near the bottom block from hitting the bottom block.

[0013] The technical advantages of this invention are as follows: It includes two relatively displaceable seats, each seat having two longitudinal clamping parts and one transverse clamping part. The relative displacement of the two seats drives the relative displacement of the two transverse clamping parts to achieve transverse clamping. The two longitudinal clamping parts on each seat can move relative to each other along the seat to achieve longitudinal clamping. The transverse and longitudinal clamping parts are respectively clamped on the first and second opposite sides of the battery top cover. In conjunction with a sensor for sensing the position of the injection hole, the battery top cover can be accurately positioned. The distance between the two transverse clamping parts is adjusted by the displacement of the seats, and the distance between the two longitudinal clamping parts is adjusted by the relative displacement of the two longitudinal clamping parts on each seat. In conjunction with the movement of the sliding seat, the sensor position is adjusted, thereby enabling the clamping of battery top covers of different sizes, forming a universal clamping fixture suitable for battery top covers of different sizes and models. Attached Figure Description

[0014] Figure 1 This is a 3D view of the overall structure after the battery top cover is clamped.

[0015] Figure 2 It is a three-dimensional diagram of the overall structure.

[0016] Figure 3 This is an exploded view of the structure between the base block and the foundation.

[0017] Figure 4 It is a three-dimensional structure of the base. Figure 1 .

[0018] Figure 5 It is a three-dimensional structure of the base. Figure 2 .

[0019] Figure 6 This is an exploded view of the overall structure.

[0020] Figure 7 This is an exploded view of the structure of the transverse clamping part and the longitudinal clamping part.

[0021] In the diagram: 1. Battery top cover; 1a. First opposite side; 1b. Second opposite side; 1c. Injection hole; 2. Base; 21. Guide rail; 22. Slider; 3. Seat body; 31. Side block; 32. Bottom block; 33. Groove; 34. First positioning block; 35. First side groove; 36. Second positioning block; 37. Second side groove; 38. Slide groove; 4. Lateral clamping part; 41. First mounting base; 42. First mounting groove; 43. First mounting block; 44. First through hole; 45. First pin; 46. Lateral clamping wheel; 47. First limit switch 48. Groove; 5. First platform; 6. Longitudinal clamping part; 7. Second mounting base; 8. Second mounting groove; 9. Second mounting block; 10. Second mounting hole; 11. Second mounting pin; 12. Second mounting hole; 13. Second mounting rod; 14. Second mounting end; 15. Mounting rod; 16. Step surface. Detailed Implementation

[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0023] This utility model provides a battery top cover positioning fixture, which is used to position the battery top cover 1, such as... Figure 1 As shown, the battery top cover 1 is a rectangular plate structure. The two short sides of the battery top cover 1 are the first pair of sides 1a, and the two long sides are the second pair of sides 1b. The battery top cover 1 has an injection hole 1c. Figure 2 and Figure 3As shown, a battery top cover positioning fixture of this utility model includes a base 2, on which a horizontally distributed guide rail 21 is provided. A slider 22 is slidably fitted onto the guide rail 21, and a seat 3 is provided on the slider 22, allowing the seat 3 to move back and forth along the guide rail 21. In this embodiment, there are two seats 3, symmetrically and relatively distributed on the base 2. Under the action of the corresponding slider 22, the two seats 3 can move closer and further away from each other along the guide rail 21. Each of the two seats 3 is provided with a horizontal clamping part 4, and the two seats 3 respectively drive the corresponding horizontal clamping part 4 to move closer and further away laterally. To achieve clamping of the first pair of sides 1a; each of the two bases 3 is provided with two longitudinal clamping parts 5. The two longitudinal clamping parts 5 on the same base 3 are relatively distributed and can move synchronously relative to each other. The two longitudinal clamping parts 5 on the same base 3 are distributed front and back. One lateral clamping part 4 is located on the lateral outside of the two longitudinal clamping parts 5. The two longitudinal clamping parts 5 on one base 3 are located on the left front and back of the battery top cover 1. The two longitudinal clamping parts 5 on the other base 3 are located on the right front and back of the battery top cover 1. Therefore, a total of four longitudinal clamping parts 5 are used to clamp the second pair of sides 1b of the battery top cover 1.

[0024] Furthermore, such as Figure 4 and Figure 5 As shown, a first lead screw 7 extending in the same direction as the guide rail 21 is provided on the base 2. The two ends of the first lead screw 7 form opposite threaded sections. Two seats 3 are respectively connected to the two ends of the first lead screw 7 by the first nut 8. By driving the first lead screw 7 to rotate, the two seats 3 can be synchronously displaced relative to each other along the first lead screw 7. A first drive end 9 for driving the first lead screw 7 to rotate is provided at both ends of the first lead screw 7. In this embodiment, the first drive end 9 is a knob provided at both ends of the first lead screw 7. The first lead screw 7 can be rotated from both the left and right sides by turning the knob.

[0025] Each base 3 is provided with a longitudinal second lead screw 10. The first lead screw 7 and the second lead screw 10 are distributed on the same horizontal plane in the upper and lower layers relative to the base 2. The two ends of the second lead screw 10 also form opposite thread helix sections. Two longitudinal clamping parts 5 are respectively connected to the two ends of the same second lead screw 10 through the second nut 13. By driving the second lead screw 10 to rotate, the two longitudinal clamping parts 5 on the same base 3 can be synchronously displaced relative to each other along the second lead screw 10. The two ends of the second lead screw 10 are provided with a second driving end 14 to drive the second lead screw 10 to rotate. In this embodiment, the second driving end 14 is a knob provided at both ends of the second lead screw 10. The second lead screw 10 can be rotated from both the left and right sides by turning the knob.

[0026] Therefore, the first lead screw 7 drives the seat 3 to move, and the lateral clamping part 4 is driven by its respective seat 3 to perform relative displacement to achieve clamping. The longitudinal clamping part 5 is driven by the second lead screw 10 to perform relative displacement, thereby achieving clamping.

[0027] Furthermore, such as Figure 7 As shown, the transverse clamping part 4 includes a first mounting base 41 mounted on the base 3. A first mounting groove 42 is formed on the first mounting base 41, and a first mounting block 43 is inserted into the first mounting groove 42. The bottom of the first mounting block 43 is fixedly connected to the first mounting groove 42 by fasteners. The top of the first mounting block 43 extends outside the first mounting groove 42 and has a first through hole 44. A transverse clamping wheel 46 is rotatably connected to the first through hole 44 via a first pin 45. It should be noted that the top of the first mounting block 43 has a first limiting groove 47 for accommodating the transverse clamping wheel 46. The first limiting groove 47 communicates with the first through hole 44. Each first mounting block 43 has a plurality of parallel transverse clamping wheels 46. The first limiting groove 47 and the transverse clamping wheel 46 are connected in series. Each of the clamping wheels 46 is arranged in a corresponding manner, and each first limiting groove 47 has a transverse clamping wheel 46, so that the transverse clamping wheel 46 can rotate around the first pin 45 in the first limiting groove 47. This design makes the transverse clamping wheel 46 more stable. The transverse clamping wheel 46 is made of a soft material, such as rubber. The transverse clamping wheels 46 on the two first mounting blocks 43 clamp the first opposite sides 1a of the battery top cover 1. It should be noted that the first mounting base 41 has a first platform 48 at the transverse clamping wheel 46, so that after the battery top cover 1 is inserted into the opposite transverse clamping wheel 46 from top to bottom, the bottom edge of the first opposite side 1a will abut against the first platform 48 of the first mounting base 41, that is, the first platform 48 provides support for the battery top cover 1.

[0028] The longitudinal clamping part 5 includes a second mounting base 51 connected to the second nut 13. The second mounting base 51 has a second mounting groove 52. A second mounting block 53 is inserted into the second mounting groove 52. The second mounting block 53 has a second through hole 54. A longitudinal clamping wheel 56 is rotatably connected to the second through hole 54 through a second pin 55. The top of the second mounting block 53 has a second limiting groove 57 for accommodating the longitudinal clamping wheel 56. The second limiting groove 57 is arranged one-to-one with the longitudinal clamping wheel 56. Each second limiting groove 57 has one longitudinal clamping wheel 56. The second mounting base 51 also has a second platform 58 for supporting the battery top cover 1 at the longitudinal clamping wheel 56. Therefore, the installation structure and method of the longitudinal clamping wheel 56 are the same as those of the transverse clamping wheel 46, and will not be described in detail here.

[0029] In addition, the seat 3 is provided with a slide groove 38, and the second mounting seat 51 is located in the slide groove 38 and forms a limit with the slide groove 38, so that the second mounting seat 51 can be displaced relative to the seat 3 under the drive of the second lead screw 10.

[0030] One of the bases 3 is provided with a sliding seat 6 that can move laterally relative to the base 3. The top of the sliding seat 6 is close to the bottom of the battery top cover 1. The sliding seat 6 moves to below the liquid injection hole 1c of the battery top cover 1. The sliding seat 6 is provided with a sensor 61. The top of the sliding seat 6 is provided with a through hole 62. The sensing end of the sensor 61 passes through the through hole 62 and senses the position of the liquid injection hole 1c, thereby positioning the battery top cover 1.

[0031] Furthermore, the base 3 is provided with a laterally extending mounting rod 15. One end of the mounting rod 15 is connected to the bottom of one of the base blocks 32, and the other end is suspended or connected to another base 3. The sliding seat 6 is provided with a mounting hole 63. The sliding seat 6 is inserted into the mounting rod 15 through the mounting hole 63 and can move laterally along the mounting rod 15, thereby allowing the sliding seat 6 to move along the extension direction of the mounting rod 15. The sliding seat 6 is provided with a first screw hole 64, in which a fastening bolt is installed. The sliding seat 6 is positioned on the mounting rod 15 by the corresponding fastening bolt, thereby enabling the sliding seat 6 to move along the mounting rod 15. 5. Position adjustment: First, the battery top cover 1 is clamped by the horizontal clamping part 4 and the vertical clamping part 5. Then, the position of the liquid injection hole 1c is roughly sensed by the sensor 61 of the sliding seat 6. Finally, the horizontal clamping part 4 and the vertical clamping part 5 are moved by the knob to finely adjust the position of the battery top cover 1 until the sensor 61 senses the liquid injection hole 1c and determines the position of the liquid injection hole 1c, thereby playing a centering role for the battery top cover 1 and ensuring that the battery top cover 1 has been positioned in the corresponding position, which facilitates the subsequent processing of the battery top cover 1. The sensor 61 adopts a common model on the market, and its structure and working principle will not be described in detail here.

[0032] This utility model can clamp and position battery top covers 1 of different sizes and models by adjusting the positions of the horizontal clamping part 4, the vertical clamping part 5 and the sliding seat 6.

[0033] Furthermore, such as Figure 6As shown, each seat 3 includes two side blocks 31 and a bottom block 32 connected between the two side blocks 31. The two side blocks 31 are slidably engaged with the corresponding guide rails 21 by sliders 22. The two sides of the bottom block 32 are fixedly connected to the side blocks 31 by fasteners. The first nut 8 is fixedly connected to the bottom of the bottom block 32. The first lead screw 7 rotates and drives the first nut 8 to move. The first nut 8 drives the bottom block 32 and the side blocks 31 to move together, thereby driving the lateral clamping part 4 to move. The sliding groove 38 is opened on the inner side of the bottom block 32, that is, the sliding groove 38 is opened on the left side of the bottom block 32 and extends longitudinally. A groove 33 is opened on the outer side of the bottom block 32. The groove 33 is arranged laterally and one end passes through the outer end of the seat 3. Two detachable and laterally symmetrically distributed first positioning blocks 34 are provided in the groove 33. Two first positioning blocks 34 are located on the front and rear sides of the groove 33, respectively. The two first positioning blocks 34 and the bottom surface of the groove 33 form a first side groove 35. The first side groove 35 communicates with the groove 33 and forms an inverted T-shaped groove with the groove 33. The two sides of the first mounting seat 41 are protruding. The first mounting seat 41 is completely inserted into the inverted T-shaped groove. The first side groove 35 limits the two sides of the first mounting seat 41, so that the first mounting seat 41 can be stably fixedly connected to the bottom block 32. The first positioning blocks 34, the two sides of the first mounting seat 41 and the bottom block 32 are reinforced and connected by fasteners. That is, the first mounting seat 41 is positioned and fixed by the first positioning blocks 34, which not only makes the first mounting seat 41 more stable, but also facilitates the installation and removal of the first mounting seat 41.

[0034] Furthermore, the bottom block 32 is provided with second positioning blocks 36 on the left and right sides of the slide groove 38. The two second positioning blocks 36 are longitudinally and symmetrically distributed, that is, the second positioning blocks 36 are arranged along the extension direction of the slide groove 38. The front and rear ends of the second positioning blocks 36 are detachably installed on the bottom block 32 by fasteners. A gap is left between the bottom of each second positioning block 36 and the bottom block 32 to form a second side groove 37. The structure of the second mounting seat 51 is similar to that of the first mounting seat 41. The two sides of the second mounting seat 51 are also protruding, so that the two sides of the second mounting seat 51 can be inserted into the second side groove 37 to limit the side of the second mounting seat 51, so that the second mounting seat 51 can be stably displaced along the slide groove 38.

[0035] Furthermore, the mounting rod 15 has a stepped surface 151 near the bottom block 32. When the sliding seat 6 is adjusted along the mounting rod 15, the stepped surface 151 can limit and block the sliding seat 6 to prevent the sliding seat 6 from moving to a point where it touches or hits the bottom block 32.

[0036] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A battery top cover positioning fixture for positioning a battery top cover (1), characterized in that, The system includes a base (2) and two seats (3). The base (2) is provided with transversely distributed guide rails (21). The seats (3) are provided with sliders (22) that slide with the guide rails (21). The base (2) is provided with a first lead screw (7) that runs in the same direction as the guide rails (21). The two ends of the first lead screw (7) form opposite thread sections. The two seats (3) are respectively connected to the two ends of the first lead screw (7) by first nuts (8). The two ends of the first lead screw (7) are provided with first driving ends (9) to drive the first lead screw (7) to rotate, so that the two seats (3) can be displaced relative to each other along the first lead screw (7). Each seat (3) is provided with There are two longitudinal clamping parts (5) and one transverse clamping part (4). The two transverse clamping parts (4) are moved relative to each other under the drive of their respective seats (3) to clamp the first pair of sides (1a) of the battery top cover (1). The two longitudinal clamping parts (5) are located on one side of the battery top cover (1) and can be moved relative to each other along the seat (3) so that the four longitudinal clamping parts (5) are used together to clamp the second pair of sides (1b) of the battery top cover (1). Two parallel sliding seats (6) are provided on one seat (3) and can be moved laterally relative to the seat (3). Sensors (61) are provided on the sliding seats (6) respectively to sense the position of the liquid injection hole (1c) on the battery top cover (1).

2. The battery top cover positioning fixture according to claim 1, characterized in that, Each of the seat bodies (3) is provided with a longitudinal second lead screw (10), and the two ends of the second lead screw (10) also form opposite thread helix sections. The two longitudinal clamping parts (5) are respectively connected to the two ends of the same second lead screw (10) by the second nut (13). The two ends of the second lead screw (10) are provided with a second driving end (14) to drive the second lead screw (10) to rotate.

3. The battery top cover positioning fixture according to claim 2, characterized in that, The transverse clamping part (4) includes a first mounting base (41) connected to the base body (3). The first mounting base (41) has a first mounting groove (42). A first mounting block (43) is inserted into the first mounting groove (42). A first through hole (44) is opened on the first mounting block (43). A transverse clamping wheel (46) is rotatably connected to the first through hole (44) through a first pin (45).

4. The battery top cover positioning fixture according to claim 3, characterized in that, The longitudinal clamping part (5) includes a second mounting seat (51) connected to the second nut (13). The second mounting seat (51) has a second mounting groove (52). A second mounting block (53) is inserted into the second mounting groove (52). A second through hole (54) is opened on the second mounting block (53). A longitudinal clamping wheel (56) is rotatably connected to the second through hole (54) through a second pin (55). The seat body (3) has a sliding groove (38). The second mounting seat (51) is located in the sliding groove (38) and forms a limit with the sliding groove (38) so that the second mounting seat (51) can be displaced relative to the seat body (3) under the drive of the second lead screw (10).

5. A battery top cover positioning fixture according to claim 4, characterized in that, The base (3) includes two side blocks (31) and a bottom block (32) connected between the two side blocks (31). The two side blocks (31) are slidably engaged with the corresponding guide rails (21) by sliders (22). The first nut (8) is connected to the bottom of the bottom block (32). The groove (38) is opened on the inner side of the bottom block (32) and extends longitudinally. The bottom block (32) has a groove (33) on the outer side. The first mounting seat (41) is set in the groove (33).

6. The battery top cover positioning fixture according to claim 5, characterized in that, The groove (33) is arranged horizontally and one end passes through the outer end of the seat (3). The groove (33) is provided with two detachable and horizontally symmetrical first positioning blocks (34). The two first positioning blocks (34) form a first side groove (35) between the opposite position of the groove (33) and the bottom surface of the groove (33) to limit the side of the first mounting seat (41).

7. A battery top cover positioning fixture according to claim 5, characterized in that, The bottom block (32) has detachable and longitudinally symmetrically distributed second positioning blocks (36) on both sides of the slide groove (38). Each second positioning block (36) forms a second side groove (37) with the bottom block (32) to limit the side of the second mounting seat (51).

8. A battery top cover positioning fixture according to claim 5, characterized in that, The base (3) is provided with a horizontally extending mounting rod (15). One end of the mounting rod (15) is connected to the bottom of one of the base blocks (32), and the other end is suspended or connected to another base (3). The sliding seat (6) is provided with a mounting hole (63). The sliding seat (6) is inserted into the mounting rod (15) through the mounting hole (63) and can move laterally along the mounting rod (15). The sliding seat (6) is provided with a first screw hole (64). A fastening bolt is installed in the first screw hole (64) so ​​that the sliding seat (6) is positioned on the mounting rod (15) by the corresponding fastening bolt.

9. A battery top cover positioning fixture according to claim 8, characterized in that, The mounting rod (15) has a step surface (151) for limiting near the bottom block (32) to prevent the sliding seat (6) near the bottom block (32) from hitting the bottom block (32).

Images