Movable limiting new energy battery box welding clamp

Abstract

The utility model discloses a movable limiting new energy battery box body welding clamp which comprises a base plate, a circle of frame clamping combination is installed on the base plate, a circle of frame limiting combination is arranged on the inner side of the circle of frame clamping combination, and the circle of frame limiting combination comprises at least four frame limiting devices. The frame limiting device comprises a limiting air cylinder and N sliding rails which are parallel to one another and all face the frame clamping combination, each sliding rail is provided with a frame limiting block moving along the sliding rail, and all the frame limiting blocks are connected with a piston rod of the limiting air cylinder. The device has the beneficial effects that after the frame is welded, the frame limiting block synchronously shrinks inwards along with the frame along the sliding rail, so that a finished battery box is conveniently taken out, the collision damage to the finished battery box is reduced, the piece taking efficiency is improved, the product rejection rate is reduced, the procedure beat is reduced, and the purpose of reducing the cost is achieved.

Description

New energy battery box welding fixture with movement limit Technical Field

[0001] This utility model relates to the field of new energy battery box technology, and in particular to a new energy battery box welding fixture with movable limit. Background Technology

[0002] Against the backdrop of the country's vigorous development of new energy vehicles, the battery box, as part of its industrial chain, plays a key role. Therefore, battery box fixtures have become an important tooling for assembling battery boxes.

[0003] To ensure the accuracy and precision of battery box assembly and welding, locating blocks are typically used to limit the battery box frame in the X and Y directions during assembly and welding. This fixes the frame and ensures alignment, thereby guaranteeing the accuracy and precision of the welding and improving the quality of the finished battery box. However, after the battery box frame is welded, it deforms and shrinks inward due to heat, making it difficult to remove and increasing the risk of damage from collisions, ultimately reducing production efficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide a new energy battery box welding fixture with movable limit. After the frame is welded, the limit block retracts inward synchronously with the frame, which facilitates the removal of the finished battery box, reduces collision damage to the finished battery box, improves the efficiency of part removal, reduces the product scrap rate, and reduces the cycle time of the process, thereby achieving the purpose of cost reduction.

[0005] The active limit welding fixture for new energy battery box includes a base plate, the key feature of which is that a ring of frame clamping assembly is installed on the base plate, and a ring of frame limiting assembly is provided inside the ring of frame clamping assembly, the ring of frame limiting assembly including at least four frame limiting devices.

[0006] The frame limiting device includes a limiting cylinder and N parallel slide rails all facing the frame clamping assembly. Each slide rail is equipped with a frame limiting block that moves along the slide rail, and all frame limiting blocks are connected to the piston rod of the limiting cylinder.

[0007] After the frame welding is completed, the frame limiting block retracts inward along the slide rail in sync with the frame, thereby facilitating the removal of the finished battery box, reducing collision damage to the finished battery box, improving the efficiency of part removal, reducing the product scrap rate, reducing the cycle time of the process, and achieving the goal of cost reduction.

[0008] Furthermore, the frame limiting device includes a frame limiting mounting base connected to the piston rod of the limiting cylinder. N frame limiting blocks are mounted on the top of the frame limiting mounting base, and N parallel sliding grooves are mounted on the bottom of the frame limiting mounting base. All sliding grooves are fitted and matched one-to-one with all the sliding rails.

[0009] Furthermore, the cylinder body of the limiting cylinder is installed below the base plate, and a piston rod through hole is opened on the base plate. After the end of the piston rod of the limiting cylinder passes through the piston rod through hole, a first hinge block is installed, and a second hinge block is installed on the side wall of the frame limiting mounting seat.

[0010] A first connecting arm is installed between the first hinge block and the second hinge block. One end of the first connecting arm is hinged to the first hinge block, and the other end of the first connecting arm is hinged to the second hinge block.

[0011] After the frame welding is completed, the piston rod of the limiting cylinder retracts, the first connecting arm rotates inward, and drives the frame limiting block to retract inward along the slide rail, so that the frame limiting block retracts inward synchronously with the frame.

[0012] Furthermore, a cylinder limiting mounting seat is installed on the base plate, and a third hinge block is installed on the side wall of the cylinder limiting mounting seat. A second connecting arm is installed between the third hinge block and the first hinge block. One end of the second connecting arm is hinged to the first hinge block, and the other end of the second connecting arm is hinged to the third hinge block.

[0013] A cylinder limiting block is installed above the first hinge block, and the cylinder limiting block is fixedly connected to the cylinder limiting mounting seat.

[0014] Furthermore, the cylinder body of the limiting cylinder is fixedly mounted on the base plate, the piston rod of the limiting cylinder faces the frame limiting mounting seat, and the end of the piston rod of the piston cylinder is fixedly connected to the frame limiting mounting seat.

[0015] Furthermore, the ring-shaped clamping assembly includes at least four frame-down pressure cylinders and at least four frame-side pressure cylinders;

[0016] Each of the frame pressing cylinders is equipped with a downward-facing frame pressing component, and at least one frame support block is installed below the frame pressing component;

[0017] Each of the side-pressure cylinders is equipped with a side-pressure component facing the side-limiting assembly.

[0018] The frame support block supports the frame of the battery box, and the frame pressing component applies downward pressure to the frame to prevent longitudinal displacement of the frame during the welding process;

[0019] The frame side pressure component applies lateral pressure to the frame to prevent lateral displacement of the frame during the welding process.

[0020] Furthermore, a crossbeam clamping assembly located in the middle of the ring frame clamping assembly is mounted on the substrate. The crossbeam clamping assembly includes at least a pair of opposingly arranged crossbeam downward pressure cylinders and crossbeam side pressure cylinders.

[0021] Each of the crossbeam pressing cylinders is equipped with a downward-facing crossbeam pressing component, and a crossbeam support block is installed below the crossbeam pressing component.

[0022] Each of the crossbeam side-pressure cylinders is equipped with a crossbeam side-pressure component facing the crossbeam downward-pressure cylinder, and each of the crossbeam side-pressure components is directly opposite a crossbeam limiting block.

[0023] The crossbeam support block supports the crossbeam of the battery box, and the crossbeam pressing component applies downward pressure to the crossbeam to prevent longitudinal displacement of the crossbeam during the welding process.

[0024] The crossbeam limiting block positions and limits the crossbeam of the battery box, and the crossbeam side pressing component applies lateral pressure to the crossbeam to prevent lateral displacement of the crossbeam during the welding process.

[0025] Furthermore, at least one pair of positioning pins are provided on the outer side of the ring frame clamping assembly.

[0026] Positioning pins are used to position the battery box frame, ensuring that the battery box frames are aligned with each other, thereby guaranteeing the accuracy and precision of the battery box welding and improving the quality of the finished battery box.

[0027] Furthermore, at least four edge positioning detection sensors and at least one beam positioning detection sensor are mounted on the substrate, with the edge positioning detection sensors close to the edge clamping assembly and the beam positioning detection sensor close to the beam clamping assembly.

[0028] Beneficial effects: After the frame welding is completed, the frame limiting block retracts inward synchronously with the frame, which facilitates the removal of the finished battery box, reduces collision damage to the finished battery box, improves the efficiency of picking up parts, reduces the product scrap rate, and reduces the cycle time of the process, thereby achieving the purpose of cost reduction. Attached Figure Description

[0029] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0030] Figure 2 is an enlarged schematic diagram of part a in Figure 1;

[0031] Figure 3 is an enlarged schematic diagram of part b in Figure 1;

[0032] Figure 4 is an enlarged schematic diagram of part c in Figure 1;

[0033] Figure 5 is a planar schematic diagram of this utility model. Detailed Implementation

[0034] The specific embodiments and working principle of this utility model will be further described in detail below with reference to the accompanying drawings.

[0035] As shown in Figures 1, 3, and 5, the movable limit welding fixture for a new energy battery box includes a base plate 1. A frame clamping assembly is mounted on the base plate 1. The frame clamping assembly includes several frame pressing cylinders 2 and several frame side pressing cylinders 3. Each frame pressing cylinder 2 is equipped with a downward-facing frame pressing component 2a, and at least one frame support block 4 is mounted below each frame pressing component 2a. Each frame side pressing cylinder 3 is equipped with a frame side pressing component 3a facing the inside of the frame clamping assembly.

[0036] As shown in Figures 1, 2, and 5, a ring of edge limiting assembly is installed on the substrate 1. The ring of edge limiting assembly is located inside the ring of edge clamping assembly. The edge limiting assembly includes several edge limiting devices 6.

[0037] Example 1 of the frame limiting device 6:

[0038] As shown in Figure 2, the frame limiting device 6 includes a limiting cylinder 61, three parallel slide rails 6c that are all oriented toward the frame clamping assembly, and a frame limiting mounting base 6b.

[0039] The limiting cylinder 6l is installed below the base plate 1, which has a piston rod through hole 11. The end of the piston rod of the limiting cylinder 6l passes through the piston rod through hole 11 and is then fitted with a first hinge block 6f.

[0040] The top of the frame limiting mounting base 6b is equipped with three frame limiting blocks 6a facing the edge beam clamping assembly, and the bottom of the frame limiting mounting base 6b is equipped with three parallel sliding grooves 6d, and all sliding grooves 6d are fitted and installed in a one-to-one correspondence with all the sliding rails 6c.

[0041] A second hinge block 6g is also installed on the side wall of the frame limiting mounting base 6b. A first connecting arm 6h is installed between the second hinge block 6g and the first hinge block 6f. One end of the first connecting arm 6h is hinged to the first hinge block 6f, and the other end of the first connecting arm 6h is hinged to the second hinge block 6g.

[0042] As shown in Figure 2, a cylinder limiting mounting seat 6e is mounted on the base plate 1. The cylinder limiting mounting seat 6e is close to the limiting cylinder 6l and is located on the same straight line as the limiting cylinder 6l.

[0043] A third hinge block 6i is installed on the side wall of the cylinder limiting mounting seat 6e. A second connecting arm 6j is installed between the third hinge block 6i and the first hinge block 6f. One end of the second connecting arm 6j is hinged to the first hinge block 6f, and the other end of the second connecting arm 6j is hinged to the third hinge block 6i.

[0044] A cylinder limiting block 6k is installed above the first hinge block 6f, and the cylinder limiting block 6k is fixedly connected to the cylinder limiting mounting seat 6e.

[0045] Example 2 of the frame limiting device 6:

[0046] The frame limiting device 6 includes a limiting cylinder 6l, three parallel slide rails 6c all facing the frame clamping assembly, and a frame limiting mounting base 6b.

[0047] The cylinder body of the limiting cylinder 6l is fixedly mounted on the base plate 1, the piston rod of the limiting cylinder 6l faces the frame limiting mounting seat 6b, and the end of the piston rod of the piston cylinder is fixedly connected to the frame limiting mounting seat 6b.

[0048] The top of the frame limiting mounting base 6b is equipped with three frame limiting blocks 6a facing the edge beam clamping assembly, and the bottom of the frame limiting mounting base 6b is equipped with three parallel sliding grooves 6d, and all sliding grooves 6d are fitted and matched one-to-one with all the sliding rails 6c.

[0049] As shown in Figures 1, 3, and 5, a crossbeam clamping assembly located in the middle of the frame clamping assembly is installed on the base plate 1. The crossbeam clamping assembly includes two pairs of oppositely arranged crossbeam downward pressing cylinders 7 and crossbeam side pressing cylinders 8.

[0050] Each of the crossbeam pressing cylinders 7 is equipped with a downward-facing crossbeam pressing component 7a, and a crossbeam support block 9 is installed below the crossbeam pressing component 7a.

[0051] Each of the crossbeam side-pressure cylinders 8 is equipped with a crossbeam side-pressure component 8a facing the crossbeam downward-pressure cylinder 7, and each of the crossbeam side-pressure components 8a is directly opposite the crossbeam limiting block 10.

[0052] As shown in Figures 1, 3, and 5, two pairs of positioning pins 5 are provided opposite to each other on the outer side of the frame clamping assembly.

[0053] As shown in Figures 1, 4, and 5, four edge positioning detection sensors 11 and one beam positioning detection sensor 12 are mounted on the substrate 1, with the edge positioning detection sensors 11 close to the edge clamping assembly and the beam positioning detection sensor 12 close to the beam clamping assembly.

Claims

1. A welding fixture for a new energy battery box with movable limiting, comprising a base plate (1), characterized in that, A ring of frame clamping assembly is installed on the substrate (1). A ring of frame limiting assembly is provided inside the ring of frame clamping assembly. The ring of frame limiting assembly includes at least four frame limiting devices (6). The frame limiting device (6) includes a limiting cylinder (6l) and N parallel slide rails (6c) that are all facing the frame clamping assembly. Each slide rail (6c) is equipped with a frame limiting block (6a) that moves along the slide rail (6c). The frame limiting block (6a) faces the frame clamping assembly, and all the frame limiting blocks (6a) are connected to the piston rod of the limiting cylinder (6l).

2. The new energy battery box welding fixture with movable limit according to claim 1, characterized in that, The frame limiting device (6) includes a frame limiting mounting base (6b) connected to the piston rod of the limiting cylinder (6l). N frame limiting blocks (6a) are installed on the top of the frame limiting mounting base (6b), and N parallel sliding grooves (6d) are installed on the bottom of the frame limiting mounting base (6b). All sliding grooves (6d) are fitted and matched one-to-one with all sliding rails (6c).

3. The new energy battery box welding fixture with movable limit according to claim 2, characterized in that, The cylinder body of the limiting cylinder (6l) is installed below the base plate (1). The base plate (1) has a piston rod through hole (11). The end of the piston rod of the limiting cylinder (6l) passes through the piston rod through hole (11) and is fitted with a first hinge block (6f). A second hinge block (6g) is installed on the side wall of the frame limiting mounting seat (6b). A first connecting arm (6h) is installed between the first hinge block (6f) and the second hinge block (6g). One end of the first connecting arm (6h) is hinged to the first hinge block (6f), and the other end of the first connecting arm (6h) is hinged to the second hinge block (6g).

4. The new energy battery box welding fixture with movable limit according to claim 3, characterized in that, A cylinder limiting mounting seat (6e) is mounted on the base plate (1). A third hinge block (6i) is mounted on the side wall of the cylinder limiting mounting seat (6e). A second connecting arm (6j) is mounted between the third hinge block (6i) and the first hinge block (6f). One end of the second connecting arm (6j) is hinged to the first hinge block (6f), and the other end of the second connecting arm (6j) is hinged to the third hinge block (6i). A cylinder limiting block (6k) is mounted above the first hinge block (6f), and the cylinder limiting block (6k) is fixedly connected to the cylinder limiting mounting seat (6e).

5. The new energy battery box welding fixture with movable limit according to claim 2, characterized in that, The cylinder body of the limiting cylinder (6l) is fixedly mounted on the base plate (1), the piston rod of the limiting cylinder (6l) faces the frame limiting mounting seat (6b), and the end of the piston rod of the limiting cylinder (6l) is fixedly connected to the frame limiting mounting seat (6b).

6. The new energy battery box welding fixture with movable limit according to claim 1, characterized in that, The frame clamping assembly includes at least four frame pressing cylinders (2) and at least four frame side pressing cylinders (3); each frame pressing cylinder (2) is equipped with a downward-facing frame pressing component (2a), and at least one frame support block (4) is installed below the frame pressing component (2a); each frame side pressing cylinder (3) is equipped with a frame side pressing component (3a) facing the frame limiting assembly.

7. The new energy battery box welding fixture with movable limit according to claim 1, characterized in that, A beam clamping assembly located in the middle of the frame clamping assembly is installed on the substrate (1). The beam clamping assembly includes at least one pair of beam pressing cylinders (7) and beam side pressing cylinders (8) arranged opposite to each other. Each beam pressing cylinder (7) is equipped with a beam pressing component (7a) facing downward. A beam support block (9) is installed below the beam pressing component (7a). Each beam side pressing cylinder (8) is equipped with a beam side pressing component (8a) facing the beam pressing cylinder (7). A beam limiting block (10) is installed directly opposite the beam side pressing component (8a).

8. The new energy battery box welding fixture with movable limit according to claim 1, characterized in that, At least one pair of positioning pins (5) are provided on the outer side of the ring frame clamping assembly.

9. The new energy battery box welding fixture with movable limit according to claim 7, characterized in that, At least four edge positioning detection sensors (11) and at least one beam positioning detection sensor (12) are mounted on the substrate (1), with the edge positioning detection sensors (11) close to the edge clamping assembly and the beam positioning detection sensor (12) close to the beam clamping assembly.

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