Welding support of lithium battery pack

Abstract

The welding support of the lithium battery pack comprises a base, a fixing sleeve is longitudinally and fixedly connected to the middle of the upper portion of the base, and a rotating shaft is arranged in the fixing sleeve in a sliding mode. An opening in the right upper side of the fixed sleeve is in threaded connection with a hand screw bolt, and the fixed sleeve is in fastening connection with the rotating shaft through the hand screw bolt; the upper end of the rotating shaft is fixedly connected with a welding table, and the left and right sides of the middle of the upper portion of the welding table are fixedly connected with supporting plates correspondingly. Electric push rods are fixedly connected to the upper middle portions of the outer sides of the supporting plates. Through the arrangement of the electric push rod, the first limiting clamping plate, the first sliding groove, the second sliding groove, the second limiting clamping plate, the major arc-shaped groove, the sliding ball, the threaded rod and the hand-screwing nut, the lithium battery pack with different battery numbers can be conveniently clamped, and the lithium battery pack clamping device is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery pack welding, in particular to a welding bracket for a lithium battery pack. Background Art

[0002] The welding bracket of a lithium battery pack is a supporting device that can clamp and fix a lithium battery pack, such as a lithium battery pack welding bracket with publication number CN208744035U, which includes a base plate and a first connecting block. The first connecting block is fixedly connected to the center position of the top surface of the base plate, the top of the first connecting block is fixedly connected to the second connecting column, and the top outer wall of the second connecting column is fixedly connected to the first bearing. There are still some problems in the actual use of this lithium battery pack welding bracket. For example: after the two clamping plates are closed to each other, the internal space cannot be adjusted, so that the lithium battery pack welding bracket can only clamp and fix lithium battery packs with the same number of batteries. When the number of batteries in the lithium battery pack increases or decreases, the lithium battery pack welding bracket cannot stably clamp the lithium battery pack, which is inconvenient to use. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the utility model provides a welding bracket for a lithium battery pack, which can facilitate the clamping of lithium battery packs with different numbers of batteries and is more convenient to use.

[0004] The technical solution is as follows: a welding bracket for a lithium battery pack, comprising a base, a fixed sleeve longitudinally fixedly connected to the upper middle part of the base, and a rotating shaft slidingly arranged inside the fixed sleeve; a hand-tightening bolt is threadedly connected to the upper right opening of the fixed sleeve, and the fixed sleeve is fastened to the rotating shaft by the hand-tightening bolt; the upper end of the rotating shaft is fixedly connected to a welding table, and support plates are respectively fixedly connected to the left and right sides of the upper middle part of the welding table; electric push rods are respectively fixedly connected to the middle and upper outer sides of the support plates, and the inner ends of the output rods of the electric push rods respectively pass through the interior of the support plates, and it is characterized in that the inner ends of the output rods of the electric push rods are fixedly connected with limited clamping assemblies.

[0005] Preferably, the limit clamping assembly includes two relatively arranged first limit clamping plates, and the first slide grooves are respectively provided on the front and rear sides of the inner middle part of the first limit clamping plate; the second slide grooves are respectively provided on the front and rear sides of the inner upper side of the first limit clamping plate, and the second slide grooves are respectively communicated with the first slide grooves; the second limit clamping plates are respectively slidably provided inside each two relatively arranged first slide grooves, and the inner middle and upper sides of the second limit clamping plates are respectively laterally provided with arc-shaped grooves, wherein sliding balls are respectively slidably provided on the left and right sides of the inner side of the arc-shaped grooves; the middle and upper sides of the sliding balls are respectively integrated with threaded rods, and the upper ends of the threaded rods respectively pass through the second slide grooves; the outer walls of the threaded rods are respectively threaded with hand nuts, and the hand nuts are respectively located on the upper part of the first limit clamping plates.

[0006] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, the arrangement of the electric push rod, the first limit clamping plate, the first slide groove, the second slide groove, the second limit clamping plate, the superior arc-shaped groove, the sliding ball, the threaded rod and the hand-tightening nut is conducive to achieving the effect of facilitating the clamping of lithium battery packs with different numbers of batteries, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural diagram of the present utility model.

[0008] Figure 2 It is a structural schematic diagram of the utility model from another perspective.

[0009] Figure 3 It is a structural schematic diagram of the position-limiting clamping assembly of the utility model.

[0010] Figure 4 It is a partial cross-sectional schematic diagram of the position-limiting clamping assembly of the present utility model.

[0011] Figures 1 to 4 middle:

[0012] 1. Base; 2. Universal ball joint; 3. Fixed sleeve; 4. Rotating shaft; 5. Thumb bolt; 6. Welding table; 7. Support plate; 8. Electric push rod; 9. Limit clamping assembly; 91. First limit clamping plate; 92. First slide groove; 93. Second slide groove; 94. Second limit clamping plate; 95. Arc-shaped groove; 96. Sliding ball; 97. Threaded rod; 98. Thumb nut. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings:

[0014] As shown in Figures 1 and 2, a welding bracket for a lithium battery pack described in the present invention includes a base 1, a fixed sleeve 3 is longitudinally fixedly connected to the upper middle part of the base 1, and a rotating shaft 4 is slidably provided inside the fixed sleeve 3; a hand bolt 5 is threadedly connected to the upper right opening of the fixed sleeve 3, and the fixed sleeve 3 is fastened to the rotating shaft 4 by the hand bolt 5; a welding table 6 is fixedly connected to the upper end of the rotating shaft 4, and support plates 7 are respectively fixedly connected to the left and right sides of the upper middle part of the welding table 6; electric push rods 8 are respectively fixedly connected to the upper middle part of the outer side of the support plate 7, and the inner ends of the output rods of the electric push rods 8 respectively pass through the interior of the support plate 7.

[0015] One of the welding brackets for lithium battery packs also includes a limiting clamping assembly 9, and the limiting clamping assembly 9 is fixedly connected to the inner end between the output rods of the electric push rod 8, which is conducive to achieving the effect of facilitating the clamping of lithium battery packs with different numbers of batteries and is more convenient to use.

[0016] In this embodiment, combined with the Figure 3 and attached Figure 4 As shown, the described limiting clamping assembly 9 includes two relatively arranged first limiting clamping plates 91, and the first limiting clamping plate 91 has a first slide groove 92 on the front and rear sides of the inner middle part thereof; the first limiting clamping plate 91 has a second slide groove 93 on the front and rear sides of the inner upper side thereof, and the second slide groove 93 is respectively communicated with the first slide groove 92; a second limiting clamping plate 94 is slidably arranged inside each two relatively arranged first slide grooves 92, and the inner middle and upper sides of the second limiting clamping plates 94 are respectively laterally provided with a superior arc-shaped groove 95, wherein the inner left and right sides of the superior arc-shaped groove 95 are respectively slidably provided with a sliding ball 96; the middle and upper sides of the sliding balls 96 are respectively integrated with a threaded rod 97, and the upper ends of the threaded rods 97 respectively pass through the second slide grooves 93; the outer walls of the threaded rods 97 are respectively threadedly connected with hand nuts 98, and the hand nuts 98 are respectively located on the upper part of the first limiting clamping plates 91.

[0017] In this embodiment, specifically, the four corners of the lower portion of the base 1 are fixedly connected with universal balls 2 , and the universal balls 2 facilitate the operator to push the welding bracket.

[0018] In this embodiment, specifically, the outer middle portion of the first position-limiting clamping plate 91 is fixedly connected to the inner end of the output rod of the electric push rod 8 .

[0019] In this embodiment, specifically, the first chute 92 and the second chute 93 are rectangular chute.

[0020] In this embodiment, specifically, the first position-limiting clamping plate 91 and the second position-limiting clamping plate 94 are respectively rectangular plates.

[0021] In this embodiment, specifically, the fixing sleeve 3 is a sleeve with a circular cross section.

[0022] In this embodiment, specifically, the rotating shaft 4 is a shaft adapted to the interior of the fixed sleeve 3 .

[0023] In this embodiment, specifically, the electric push rod 8 is electrically connected to an external control panel.

[0024] In this embodiment, when clamping the lithium battery pack, the operator can first place the lithium battery pack on the upper part of the welding table 6, and make the lithium battery pack be located in the clamping space surrounded by the first limit clamping plate 91 and the second limit clamping plate 94. Then the operator can rotate the hand nut 98 to make the hand nut 98 move away from the first limit clamping plate 91. At this time, the hand nut 98 no longer pulls the sliding ball 96 through the threaded rod 97, and the sliding ball 96 can slide inside the arc-shaped groove 95. At the same time, because the hand nut 98 is away from the first limit clamping plate 91, the threaded rod 97 can slide inside the second slide groove 93, and the second limit clamping plate 94 can slide in the first slide groove 92. Then the operator can control the electric push rod 8 to start through the external control panel, so that the output rod of the electric push rod 8 extends synchronously and slowly, and the electric push rod The rod 8 will drive the first limit clamping plate 91 to approach the lithium battery pack until the inner side of the first limit clamping plate 91 contacts the lithium battery pack. Then the operator can push the second limit clamping plate 94 inward until the second limit clamping plates 94 contact the lithium battery pack respectively, thereby restricting the movement of the lithium battery pack and avoiding the problem of batteries in the lithium battery pack moving during the welding process. Finally, the operator can tighten the hand nut 98 and weld the lithium battery pack. Compared with the prior art, since the positions of the first limit clamping plate 91 and the second limit clamping plate 94 in the utility model can be adjusted, the clamping space enclosed by the first limit clamping plate 91 and the second limit clamping plate 94 can be changed, and then the welding bracket can clamp lithium battery packs with different numbers of batteries, which is more convenient to use.

[0025] Utilizing the technical solution described in the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the scope of protection of the present invention.

Claims

1. A welding bracket for a lithium battery pack, comprising a base (1), wherein a fixing sleeve (3) is longitudinally fixedly connected to the middle portion of the upper portion of the base (1), and a rotating shaft (4) is slidably arranged inside the fixing sleeve (3); a hand-tightening bolt (5) is threadedly connected to the upper right opening of the fixing sleeve (3), and the fixing sleeve (3) is fastened and connected to the rotating shaft (4) via the hand-tightening bolt (5); a welding table (6) is fixedly connected to the upper end of the rotating shaft (4), and support plates (7) are respectively fixedly connected to the left and right sides of the upper middle portion of the welding table (6); electric push rods (8) are respectively fixedly connected to the upper middle portion of the outer side of the support plate (7), and the inner ends of the output rods of the electric push rods (8) respectively penetrate the interior of the support plate (7), wherein: The inner ends of the output rods of the electric push rods (8) are fixedly connected to a limited position clamping assembly (9); The position-limiting clamping assembly (9) comprises two first position-limiting clamping plates (91) arranged opposite to each other, wherein the first position-limiting clamping plate (91) has first sliding grooves (92) respectively arranged on the front and rear sides of the inner middle part; the first position-limiting clamping plate (91) has second sliding grooves (93) respectively arranged on the front and rear sides of the inner upper side, and the second sliding grooves (93) are respectively communicated with the first sliding grooves (92); a second position-limiting clamping plate (94) is respectively slidably arranged inside each two first sliding grooves (92) arranged opposite to each other, and the second A superior arc-shaped groove (95) is transversely provided on the middle and upper sides of the inner portion of the limiting clamping plate (94), wherein sliding balls (96) are slidably provided on the left and right sides of the inner portion of the superior arc-shaped groove (95); a threaded rod (97) is integrally connected to the middle and upper sides of the sliding balls (96), and the upper ends of the threaded rods (97) pass through the second sliding grooves (93); hand nuts (98) are threadedly connected to the outer walls of the threaded rods (97), and the hand nuts (98) are respectively located on the upper portion of the first limiting clamping plate (91).

2. The welding bracket of the lithium battery pack according to claim 1, characterized in that: Universal balls (2) are respectively fixedly connected to the four lower corners of the base (1).

3. The welding bracket of the lithium battery pack according to claim 1, characterized in that: The middle portion of the outer side of the first limit clamping plate (91) is fixedly connected to the inner end of the output rod of the electric push rod (8).

4. The welding bracket of the lithium battery pack according to claim 3, characterized in that: The first slide groove (92) and the second slide groove (93) are respectively rectangular slide grooves.

5. The welding bracket of the lithium battery pack according to claim 1, characterized in that: The first position-limiting clamping plate (91) and the second position-limiting clamping plate (94) are respectively rectangular plates.

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