Clamping device

Abstract

The utility model discloses a clamping device, the clamping device comprises a base and a clamping assembly, the clamping assembly comprises a first clamping plate, a second clamping plate and a first adjusting bolt, the first clamping plate and / or the second clamping plate are movably connected to the base and arranged relatively, the first adjusting bolt is arranged on the first clamping plate and the second clamping plate and is threadedly matched with the first clamping plate and the second clamping plate, the pressing plate assembly comprises a pressing plate and a lifting assembly, the lifting assembly comprises a connecting part and a lifting part, the connecting part is connected to the first clamping plate and / or the second clamping plate, the lifting part is connected to the connecting part and is movable relative to the connecting part along a first direction, the pressing plate is connected to the connecting part, the first direction is perpendicular to the end face of the base facing the first clamping plate or the second clamping plate, and / or the connecting part is movable relative to the clamping assembly in a plane perpendicular to the first direction. The clamping device of the utility model can flexibly adjust the clamping plate spacing and the position and height of the pressing plate according to the size of the battery core, without the need to replace the tooling, and has high versatility and can be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, in particular to a clamping device. Background Art

[0002] In the single-cell-level bar welding experiment, a tool is needed to limit the battery cell. In practice, battery cells of different sizes and specifications are often encountered. If the welding limit tool is designed according to the size of the battery cell, it will be very complicated and cumbersome, and the cost is high. The reusability of the tool is very low. If the appropriate welding tool is not replaced, the workpiece may shake due to inadequate clamping, resulting in problems such as offset and misalignment of the bar during welding, affecting the welding effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the defects and shortcomings of the prior art, a clamping device is proposed, which can flexibly adjust the spacing between the clamping plates according to the model of the battery cell, does not require the replacement of tooling, has high versatility, and can be reused.

[0004] The clamping device of the utility model embodiment comprises:

[0005] Base;

[0006] A clamping assembly, the clamping assembly comprising a first clamping plate, a second clamping plate and a first adjusting bolt, the first clamping plate and / or the second clamping plate are movably connected to the base and the first clamping plate and the second clamping plate are arranged opposite to each other, the first adjusting bolt is passed through the first clamping plate and the second clamping plate and is threadedly matched with the first clamping plate and the second clamping plate;

[0007] A pressure plate assembly, the pressure plate assembly includes a pressure plate and a lifting assembly, the lifting assembly includes a connecting part and a lifting part, the connecting part is connected to the first clamping plate and / or the second clamping plate, the lifting part is connected to the connecting part and is movable relative to the connecting part along a first direction, the pressure plate is connected to the lifting part, the first direction is perpendicular to the end surface of the base facing the first clamping plate or the second clamping plate, and / or the connecting part is movable relative to the clamping assembly in a plane perpendicular to the first direction.

[0008] The clamping device of the embodiment of the utility model is characterized in that the first clamping plate and / or the second clamping plate are movably connected to the base and are arranged relatively to each other, the first adjusting bolt is passed through the first clamping plate and the second clamping plate and is threadedly matched with the first clamping plate and the second clamping plate, the connecting part is connected to the first clamping plate and / or the second clamping plate, the lifting part is connected to the connecting part and is movable relative to the connecting part along a first direction, the pressing plate is connected to the lifting part, the first direction is perpendicular to the end face of the base toward the first clamping plate or the second clamping plate, and / or the connecting part is movable relative to the clamping assembly in a plane perpendicular to the first direction. Therefore, the clamping device of the present application can flexibly adjust the distance between the first clamping plate and the second clamping plate according to the size of the battery cell to meet the clamping requirements of the battery cell, and control the lifting and lowering of the lifting part according to the height of the tabs of battery cells of different sizes to adjust the pressing plate to an adaptive height. At the same time, according to the position of the tabs of battery cells of different sizes, the connecting part can be moved to move the pressing plate to a position corresponding to the tabs, thereby meeting the clamping requirements of the tabs of battery cells of different sizes. The tooling can be reused, reducing the assembly and replacement costs.

[0009] In some embodiments, the clamping assembly also includes a first clamp block and a second clamp block, the first clamp block and / or the second clamp block are movably connected to the base, and the first clamp plate and the second clamp plate are arranged along a second direction, the first clamp block and the second clamp block are arranged along a third direction, and the second direction is perpendicular to the third direction.

[0010] In some embodiments, the clamping assembly further includes a second adjusting bolt, a first fixing bracket is provided on the base, the first fixing bracket is located on a side of the first clamping block away from the second clamping block, and the second adjusting bolt is passed through the first fixing bracket and an end thereof stops against the first clamping block;

[0011] And / or, the clamping assembly also includes a third adjusting bolt, and the base is also provided with a second fixing bracket, the second fixing bracket is located on the side of the second clamping block away from the first clamping block, and the third adjusting bolt is passed through the second fixing bracket and its end stops at the second clamping block.

[0012] In some embodiments, the base is provided with a first guide rail and a second guide rail extending along the arrangement direction of the first clamping plate and the second clamping plate, the first clamping plate has a slide groove cooperating with the first guide rail, and the second clamping plate has a slide groove cooperating with the second guide rail.

[0013] In some embodiments, a guide groove extending along the second direction is provided on the base, and the first clamping block and the second clamping block can both be slidably fitted in the guide groove.

[0014] In some embodiments, the connecting part is a connecting bottom plate, the lifting part is a movable top plate, and the lifting assembly also includes a fourth adjusting bolt, which is passed through the connecting bottom plate and the movable top plate along the third direction and is threadedly engaged with the connecting bottom plate and the movable top plate.

[0015] In some embodiments, a buckle plate is provided on the side of the movable top plate facing the connecting bottom plate, and the buckle plate includes a first connecting end and a second connecting end opposite to each other in its length direction and a buckle section connected between the first connecting end and the second connecting end, the first connecting end and the second connecting end are both connected to the movable top plate, the buckle section protrudes toward the connecting bottom plate and is spaced apart from the movable top plate to form a matching hole, and the pressure plate is inserted into the matching hole.

[0016] In some embodiments, the lifting assembly includes the first lifting assembly disposed on the first clamping plate and the second lifting assembly disposed on the second clamping plate, and the pressing plate is connected between the first lifting assembly and the second lifting assembly.

[0017] In some embodiments, the first clamping plate is provided with a first slide rail arranged along its length direction, the second clamping plate is provided with a second slide rail arranged along its length direction, and the first lifting assembly and the second lifting assembly are slidably matched with the first slide rail and the second slide rail respectively.

[0018] In some embodiments, the connecting bottom plate is provided with a scale extending toward the movable top plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a clamping device according to an embodiment of the utility model.

[0020] Figure 2 It is an axonometric view of a clamping device according to an embodiment of the utility model.

[0021] Figure 3 It is a schematic structural diagram of a lifting member of a clamping device according to an embodiment of the utility model.

[0022] Reference numerals:

[0023] Base 1, first clamping plate 2, first slide rail 21, second clamping plate 3, second slide rail 31, first clamping block 4, second clamping block 5, first adjusting bolt 6, second adjusting bolt 7, third adjusting bolt 8, fourth adjusting bolt 9, lifting member 10, connecting bottom plate 11, movable top plate 12, scale 13, pressing plate 14, bar 15, battery cell 16, first fixed bracket 17, second fixed bracket 18, guide groove 19, clamping hook 20. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0025] like Figure 1-Figure 3 As shown, the clamping device of the embodiment of the utility model includes a base 1, a clamping assembly and a pressure plate assembly. It should be noted that the clamping device of the present application can be applied to various workpieces. In the embodiment of the present application, the clamping device is used to clamp the battery cell and assist the welding of the bar.

[0026] Specifically, Figure 1 and Figure 2 As shown, the clamping assembly includes a first clamping plate 2, a second clamping plate 3 and a first adjusting bolt 6. The first clamping plate 2 and / or the second clamping plate 3 are movably connected to the base 1 and the first clamping plate 2 and the second clamping plate 3 are arranged opposite to each other. The first adjusting bolt 6 is penetrated through the first clamping plate 2 and the second clamping plate 3 and is threadedly matched with the first clamping plate 2 and the second clamping plate 3. The pressing plate assembly includes a pressing plate 14 and a lifting assembly 10. The lifting assembly 10 includes a connecting portion and a lifting portion. The connecting portion is connected to the first clamping plate 2 and / or the second clamping plate 3. The lifting portion is connected to the connecting portion and is movable relative to the connecting portion along a first direction. The pressing plate 14 is connected to the lifting portion. The first direction is perpendicular to the end face of the base 1 facing the first clamping plate 2 or the second clamping plate 3, and / or the connecting portion is movable relative to the clamping assembly in a plane perpendicular to the first direction.

[0027] It should be noted that when welding the battery cell tab 15, in addition to using the clamping device to clamp the battery cell 16, the tab 15 must also be pressed and fixed to ensure the stability of welding. When the size of the battery cell 16 changes, the height and position of the tab 15 will also change accordingly. The clamping device of the present application is provided with a lifting component 10. The lifting part can adjust the height of the pressing plate 14 according to the height of the tab 15, and the movement of the connecting part can adjust the position of the pressing plate 14 according to the position of the tab 15, so that the pressing plate 14 can be flexibly used in the pressing process of the tabs of battery cells of different sizes.

[0028] That is to say, the distance between the first clamping plate 2 and the second clamping plate 3 and the height and position of the pressure plate 14 are adjustable, so that they can be flexibly adjusted according to the model of the battery cell 16, without having to redesign the adaptive clamping tooling due to the change in the size of the battery cell 16, thereby reducing costs. In addition, the present application uses the first adjusting bolt 6 to drive the clamping plate to move through the screw transmission principle, which is convenient to adjust, simple in structure, low in cost, and the screw transmission has the advantages of high precision and smooth transmission.

[0029] The clamping device of the utility model embodiment is characterized in that the first clamping plate 2 and / or the second clamping plate 3 are movably connected to the base 1 and are arranged relatively to each other, the first adjusting bolt 6 is penetrated through the first clamping plate 2 and the second clamping plate 3 and is threadedly matched with the first clamping plate 2 and the second clamping plate 3, the connecting portion is connected to the first clamping plate 2 and / or the second clamping plate 3, the lifting portion is connected to the connecting portion and is movable relative to the connecting portion along a first direction, the pressing plate 14 is connected to the lifting portion, the first direction is perpendicular to the end face of the base 1 facing the first clamping plate 2 or the second clamping plate 3, and / or the connecting portion is movable relative to the clamping assembly in a plane perpendicular to the first direction, so that the first clamping plate 2 and the second clamping plate 3 can be adjusted by screwing the first adjusting bolt 6. An adjusting bolt 6 utilizes a screw drive to drive the first clamping plate 2 and the second clamping plate 3 to move relatively closer or farther away, so as to adjust the distance between the first clamping plate 2 and the second clamping plate 3, so as to flexibly clamp battery cells 16 of different sizes, and control the lifting and lowering of the lifting part according to the height of the tabs 15 of battery cells 16 of different sizes to adjust the pressing plate 14 to an appropriate height. At the same time, according to the positions of the tabs 15 of battery cells 16 of different sizes, the connecting part can be moved to move the pressing plate 14 to a position corresponding to the tabs 15, so as to meet the clamping requirements of the tabs 15 of battery cells 16 of different sizes. The tooling can be reused, reducing the assembly and replacement costs.

[0030] Furthermore, if Figure 1 and Figure 2 As shown, the clamping assembly also includes a first clamp block 4 and a second clamp block 5, and the first clamp block 4 and / or the second clamp block 5 are movably connected to the base 1, and the first clamp plate 2 and the second clamp plate 3 are arranged along the second direction, and the first clamp block 4 and the second clamp block 5 are arranged along the third direction, and the second direction is perpendicular to the third direction. It can be understood that a common battery cell 16 such as a rectangular battery cell has four sides, and the first clamp block 4, the second clamp block 5, the first clamp plate 2 and the second clamp plate 3 can clamp the battery cell 16 from four directions respectively, and the clamping reliability is high. Preferably, the first clamp plate 2 and the second clamp plate 3 are used to clamp the side surfaces of the battery cell 16, and the first clamp block 4 and the second clamp block 5 are used to clamp the end surfaces of the battery cell 16. It can be understood that the side surfaces of the common rectangular battery cell 16 are large surfaces, and the end surfaces have a relatively small area. The clamping stability can be improved by clamping the large surfaces with the first clamp plate 2 and the second clamp plate 3.

[0031] Furthermore, if Figure 1 and Figure 2 As shown, the clamping assembly also includes a second adjusting bolt 7, a first fixing bracket 17 is provided on the base 1, and the first fixing bracket 17 is located on the side of the first clamping block 4 away from the second clamping block 5. The second adjusting bolt 7 is passed through the first fixing bracket 17 and its end stops at the first clamping block 4.

[0032] Furthermore, the clamping assembly further includes a third adjusting bolt 8, and a second fixing bracket 18 is further provided on the base 1. The second fixing bracket 18 is located on the side of the second clamping block 5 away from the first clamping block 4. The third adjusting bolt 8 is passed through the second fixing bracket 18 and its end abuts against the second clamping block 5. Thus, by screwing the second adjusting bolt 7, the first clamping block 4 can be pushed to move toward the second clamping block 5, and by screwing the third adjusting bolt 8, the second clamping block 5 can be pushed to move toward the first clamping block 4. After the welding process of one battery cell 16 is completed, the second adjusting bolt 7 and the third adjusting bolt 8 can be controlled to rotate, and then the first clamping block 4 and the second clamping block 5 can be moved and reset to prepare for the next clamping.

[0033] Preferably, the base 1 is provided with a first guide rail and a second guide rail extending along the arrangement direction of the first clamping plate 2 and the second clamping plate 3, the first clamping plate 2 has a slide groove matched with the first guide rail, and the second clamping plate 3 has a slide groove matched with the second guide rail. Thus, the first guide rail can limit the sliding track of the first clamping plate 2, and the second guide rail can limit the sliding track of the second clamping plate 3, and at the same time play the role of assembly limit.

[0034] Preferably, if Figure 1 As shown, the base 1 is provided with a guide groove 19 extending along the second direction, and the first clamp block 4 and the second clamp block 5 can be slidably fitted in the guide groove 19. Therefore, the guide groove 19 can limit the movement trajectory of the first clamp block 4 and the second clamp block 5 to avoid deviation, and play a role in assembling and positioning the first clamp block 4 and the second clamp block 5.

[0035] Furthermore, the connecting part is a connecting bottom plate, the lifting part is a movable top plate, and the lifting assembly further comprises a fourth adjusting bolt 9, which is passed through the connecting bottom plate 11 and the movable top plate 12 along the third direction and is threadedly matched with the connecting bottom plate 11 and the movable top plate 12. Thus, by screwing the fourth adjusting bolt 9, the lifting and lowering of the movable top plate 12 can be controlled to flexibly adjust the height of the pressing plate 14.

[0036] Furthermore, a buckle plate 20 is provided on the side of the movable top plate 12 facing the connecting bottom plate 11. The buckle plate 20 includes a first connecting end and a second connecting end opposite to each other in the length direction thereof and a buckle section connected between the first connecting end and the second connecting end. The first connecting end and the second connecting end are both connected to the movable top plate 12. The buckle section protrudes toward the connecting bottom plate 11 and is spaced apart from the movable top plate 12 to form a matching hole. The pressing plate 14 is inserted into the matching hole. Specifically, Figure 1 As shown, the two ends of the pressure plate 14 are respectively matched with the buckle plates 20 on the movable top plates 11 on both sides. During assembly, one end of the pressure plate 14 can be first installed on the buckle plate 20 on one side, and then the other end of the pressure plate 14 can be assembled. The entire disassembly and assembly process does not involve other connecting parts, and the structure is simple and easy to disassemble and assemble.

[0037] Preferably, the lifting assembly 10 includes a first lifting assembly disposed on the first clamping plate 2 and a second lifting assembly disposed on the second clamping plate 3 , and the pressing plate 14 is connected between the first lifting assembly and the second lifting assembly.

[0038] As a result, the pressing plate 14 connected between the two lifting assemblies has better movement stability and balance.

[0039] Furthermore, the first clamping plate 2 is provided with a first slide rail 21 arranged along its length direction, and the second clamping plate 3 is provided with a second slide rail 31 arranged along its length direction, and the first lifting assembly and the second lifting assembly are respectively slidably matched with the first slide rail 21 and the second slide rail 31. It can be understood that when the size of the battery cell 16 changes, the position of the bar 15 changes, and the first lifting assembly and the second lifting assembly move along the slide rail to adjust the position of the pressure plate 14 so that it can adapt to the position change of the bar 15, thereby achieving the compression of the bar 15.

[0040] Preferably, a scale 13 extending toward the movable top plate 12 is provided on the connecting bottom plate 11. Thus, by setting the scale 13, it is convenient to determine the height when both sides of the pressing plate 14 are fixed, and ensure the flatness of the bar 15 when welding and pressurizing.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A clamping device, characterized in that: include: Base; A clamping assembly, the clamping assembly comprising a first clamping plate, a second clamping plate and a first adjusting bolt, the first clamping plate and / or the second clamping plate are movably connected to the base and the first clamping plate and the second clamping plate are arranged opposite to each other, the first adjusting bolt is passed through the first clamping plate and the second clamping plate and is threadedly matched with the first clamping plate and the second clamping plate; A pressure plate assembly, the pressure plate assembly includes a pressure plate and a lifting assembly, the lifting assembly includes a connecting part and a lifting part, the connecting part is connected to the first clamping plate and / or the second clamping plate, the lifting part is connected to the connecting part and is movable relative to the connecting part along a first direction, the pressure plate is connected to the lifting part, the first direction is perpendicular to the end surface of the base facing the first clamping plate or the second clamping plate, and / or the connecting part is movable relative to the clamping assembly in a plane perpendicular to the first direction.

2. The clamping device according to claim 1, characterized in that: The clamping assembly also includes a first clamp block and a second clamp block, the first clamp block and / or the second clamp block are movably connected to the base, and the first clamp plate and the second clamp plate are arranged along a second direction, the first clamp block and the second clamp block are arranged along a third direction, and the second direction is perpendicular to the third direction.

3. The clamping device according to claim 2, characterized in that: The clamping assembly further includes a second adjusting bolt, a first fixing bracket is provided on the base, the first fixing bracket is located on a side of the first clamping block away from the second clamping block, and the second adjusting bolt is passed through the first fixing bracket and an end thereof stops against the first clamping block; And / or, the clamping assembly also includes a third adjusting bolt, and the base is also provided with a second fixing bracket, the second fixing bracket is located on the side of the second clamping block away from the first clamping block, and the third adjusting bolt is passed through the second fixing bracket and its end stops at the second clamping block.

4. The clamping device according to claim 1, characterized in that: The base is provided with a first guide rail and a second guide rail extending along the arrangement direction of the first clamping plate and the second clamping plate. The first clamping plate has a slide groove matched with the first guide rail, and the second clamping plate has a slide groove matched with the second guide rail.

5. The clamping device according to claim 2, characterized in that: The base is provided with a guide groove extending along the second direction, and the first clamping block and the second clamping block can both be slidably fitted in the guide groove.

6. The clamping device according to claim 1, characterized in that: The connecting part is a connecting bottom plate, the lifting part is a movable top plate, and the lifting assembly further comprises a fourth adjusting bolt, which is passed through the connecting bottom plate and the movable top plate along the first direction and is threadedly matched with the connecting bottom plate and the movable top plate.

7. The clamping device according to claim 6, characterized in that: A buckle plate is provided on the side of the movable top plate facing the connecting bottom plate, the buckle plate includes a first connecting end and a second connecting end opposite to each other in its length direction and a buckle section connected between the first connecting end and the second connecting end, the first connecting end and the second connecting end are both connected to the movable top plate, the buckle section protrudes toward the connecting bottom plate and is spaced apart from the movable top plate to form a matching hole, and the pressing plate is inserted into the matching hole.

8. The clamping device according to claim 1, characterized in that: The lifting assembly includes a first lifting assembly arranged on the first clamping plate and a second lifting assembly arranged on the second clamping plate, and the pressing plate is connected between the first lifting assembly and the second lifting assembly.

9. The clamping device according to claim 8, characterized in that: The first clamping plate is provided with a first slide rail arranged along its length direction, the second clamping plate is provided with a second slide rail arranged along its length direction, and the first lifting assembly and the second lifting assembly are slidably matched with the first slide rail and the second slide rail respectively.

10. The clamping device according to claim 6, characterized in that: The connecting bottom plate is provided with a scale extending toward the movable top plate.

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