Positioning clamp

Abstract

The utility model provides a positioning fixture, which is used for positioning a battery shell and comprises a mounting seat, the first reference mechanism is arranged on the mounting seat; the first jacking mechanism comprises a base, at least two jacking assemblies, at least two elastic assemblies and a first driving mechanism, the first driving mechanism drives the base to be movably arranged on the mounting base in the first direction, each jacking assembly can be movably arranged on the base in the first direction, and the jacking assemblies are sequentially arranged at intervals in the second direction; one end of one elastic assembly abuts against one jacking assembly, and the other end of the elastic assembly abuts against the side, away from the jacking assembly, of the base; when the first driving mechanism drives the base to move in the first direction, the base drives the jacking assemblies to move in the first direction, so that the jacking assemblies elastically abut against the first side edge, and the second side edge abuts against the first reference mechanism in the process that the battery shell moves in the first direction. According to the positioning clamp, the positioning precision is improved, and then the welding quality is improved.

Description

Technical Field

[0001] The present application belongs to the field of battery processing technology, and more specifically, relates to a positioning fixture. Background Art

[0002] Battery welding involves welding the top cover to the battery casing after the battery cells are installed. During the battery welding process, a positioning fixture is required to clamp the battery casing in place. The conventional positioning fixture is an integrated fixture that clamps the side of the battery casing for positioning.

[0003] With the rapid development of the new energy vehicle industry, power batteries are also developing towards higher energy density. Therefore, the size of batteries is getting larger and larger, and it is impossible to ensure that the side surfaces of the battery casing are always located in the same plane. When the integrated positioning fixture of the relevant technology is used to position the battery casing, the side surfaces of the battery casing cannot be completely pressed, which can easily cause deformation of the battery casing, resulting in an excessively large gap at the welding position of the battery casing and the top cover, which is prone to light leakage during welding, thereby affecting the welding quality. Utility Model Content

[0004] The embodiment of the present application provides a positioning fixture, which can reduce the deformation of the battery housing during positioning, improve the positioning accuracy, and thus improve the welding quality.

[0005] The technical solution adopted in the embodiment of the present application is to provide a positioning fixture for positioning a battery housing, wherein the battery housing includes a first side edge and a second side edge spaced apart along a first direction; and is characterized by comprising:

[0006] Mounting seat;

[0007] A first reference mechanism is provided on the mounting seat;

[0008] The first tightening mechanism includes a base, at least two tightening components, at least two elastic components, and,

[0009] A first driving mechanism drives the base to be movably disposed on the mounting base along the first direction, each of the tightening assemblies is movably disposed on the base along the first direction, and each of the tightening assemblies is sequentially spaced apart along the second direction.

[0010] One end of the elastic component abuts against one of the tightening components, and the other end abuts against a side of the base away from the tightening component;

[0011] When the first driving mechanism drives the base to move along the first direction, the base drives each of the tightening components to move along the first direction, so that each of the tightening components elastically abuts against the first side edge, and the second side edge of the battery housing abuts against the first reference mechanism during the movement along the first direction;

[0012] The first direction is arranged at an angle to the second direction.

[0013] Furthermore, the tightening assembly includes:

[0014] A mounting plate is movably disposed on the base along the first direction; and

[0015] a tightening member, provided on the mounting plate and configured to abut against the first side edge;

[0016] One end of the elastic component abuts against the mounting plate, and the other end abuts against a side of the base away from the mounting plate.

[0017] Furthermore, the base includes a connecting plate and a side plate arranged on the side of the connecting plate away from the tightening member, the mounting plate can be movably arranged on the connecting plate along the first direction, one end of the elastic component rests on the side of the mounting plate away from the tightening member, and the other end rests on the side plate.

[0018] Furthermore, the elastic component includes:

[0019] a guide rod, one end of which is mounted on a side of the mounting plate away from the pressing member, and the other end of which is movably disposed on the side plate along the first direction; and

[0020] An elastic member is sleeved on the guide rod, and one end of the elastic member abuts against a side of the mounting plate away from the pressing member, and the other end abuts against the side plate.

[0021] Furthermore, the first tightening mechanism also includes a first guide rail and a first slider slidably mounted on the first guide rail. The first guide rail is arranged on the base, and the first slider is connected to the tightening assembly.

[0022] Furthermore, the first reference mechanism includes:

[0023] A first substrate is disposed on the mounting seat; and

[0024] The first reference member is disposed on the first substrate and is used for abutting against the second side edge.

[0025] Furthermore, the first reference member is an integrally formed structure.

[0026] Furthermore, the battery housing further includes a third side edge and a fourth side edge spaced apart along the second direction; and the positioning fixture further includes:

[0027] A second reference mechanism is provided on the mounting seat;

[0028] A second tightening mechanism; and

[0029] The second driving mechanism drives the second pressing mechanism to be movably arranged on the mounting seat along the second direction, so that the second pressing mechanism abuts against the third side edge, and the fourth side edge of the battery housing abuts against the second reference mechanism during the movement of the battery housing along the second direction.

[0030] Furthermore, the second reference mechanism includes:

[0031] A second substrate is disposed on the mounting seat; and

[0032] The second reference member is disposed on the second substrate and is used for abutting against the fourth side edge.

[0033] Furthermore, the positioning fixture further includes:

[0034] a lifting seat, movably disposed on the mounting seat and configured to support the bottom of the battery housing; and

[0035] The third driving mechanism is used to drive the lifting seat to rise to facilitate the placement or removal of the battery housing.

[0036] The beneficial effect of the positioning fixture provided by the embodiment of the present application is that: the positioning fixture of the embodiment of the present application includes a first reference mechanism, a first tightening mechanism and a first driving mechanism, the first tightening mechanism includes a base, at least two tightening components and at least two elastic components, the first reference mechanism is arranged on the mounting seat, when the battery shell needs to be positioned, the first driving mechanism drives the base to move along the first direction, and at this time the base drives each tightening component to move synchronously along the first direction, so that each tightening component elastically rests on the first side edge of the battery shell and pushes the battery shell to move along the first direction until the second side edge of the battery shell rests on the first reference mechanism, thereby realizing the positioning and clamping of the battery shell along the first direction.

[0037] Since each tightening component is arranged in sequence at intervals along the second direction, it can respectively abut against different positions of the first side edge of the battery shell along the second direction, and each tightening component can be movably arranged on the base along the first direction, one end of an elastic component abuts against a tightening component, and the other end abuts against a side of the base away from the tightening component. Under the elastic force of the elastic component, the tightening component can be pushed to move along the first direction to adjust the position of the tightening component according to the position of the first side edge, so that each tightening component can completely abut against the first side edge, thereby improving the positioning accuracy and avoiding the deformation of the battery shell during clamping and positioning due to the first side edge not being in the same plane, thereby causing excessive gaps at the welding position of the battery shell and the top cover and affecting the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0039] Figure 1 A schematic diagram of the three-dimensional structure of the positioning fixture provided in an embodiment of the present application;

[0040] Figure 2 A schematic diagram of the three-dimensional structure of the first tightening mechanism and the first driving mechanism provided in an embodiment of the present application;

[0041] Figure 3 A schematic diagram of the three-dimensional structure of the first tightening mechanism provided in an embodiment of the present application;

[0042] Figure 4 A schematic diagram of the exploded structure of the first tightening mechanism provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the three-dimensional structure of the first reference mechanism, the second reference mechanism, and the second pressing mechanism used in the embodiment of the present application;

[0044] Figure 6 This is a schematic diagram of the three-dimensional structure of the lifting seat and the third driving mechanism used in the embodiment of the present application.

[0045] Among them, the reference numerals in the figures are:

[0046] 10. Mounting seat; 11. Bottom plate; 12. Top plate; 121. Through hole; 20. First reference mechanism; 21. First substrate; 22. First reference member; 30. First tightening mechanism; 31. Base; 311. Connecting plate; 312. Side plate; 32. Tightening assembly; 321. Mounting plate; 322. Tightening member; 33. Elastic assembly; 331. Guide rod; 332. Elastic member; 34. First guide rail; 35. First slider; 40. First driving mechanism; 50. Second guide rail; 60. Second slider; 70. Second reference mechanism; 71. Second substrate; 72. Second reference member; 80. Second tightening mechanism; 90. Second driving mechanism; 100. Lifting seat; 200. Third driving mechanism. DETAILED DESCRIPTION

[0047] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0048] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0049] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0050] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0051] See also Figure 1 and Figure 2 The positioning fixture provided in the embodiment of the present application is now described. The positioning fixture provided in the embodiment of the present application can be used to position a battery housing (not shown). The battery housing includes a first side edge and a second side edge spaced apart along a first direction.

[0052] The positioning fixture provided in the embodiment of the present application includes a mounting seat 10 , a first reference mechanism 20 , a first tightening mechanism 30 and a first driving mechanism 40 .

[0053] The first reference mechanism 20 is disposed on the mounting base 10 .

[0054] The first tightening mechanism 30 includes a base 31, at least two tightening assemblies 32, and at least two elastic assemblies 33. The first driving mechanism 40 drives the base 31 to be movably arranged on the mounting base 10 along the first direction. Each tightening assembly 32 can be movably arranged on the base 31 along the first direction, and the tightening assemblies 32 are arranged in sequence along the second direction. One end of an elastic assembly 33 abuts against a tightening assembly 32, and the other end abuts against a side of the base 31 away from the tightening assembly 32, so as to provide an elastic thrust so that the tightening assembly 32 elastically abuts against the first side edge.

[0055] When the first driving mechanism 40 drives the base 31 to move along the first direction, the base 31 drives each tightening component 32 to move along the first direction, so that each tightening component 32 elastically presses against the first side edge, and the second side edge of the battery housing presses against the first reference mechanism 20 during the movement along the first direction.

[0056] The first direction and the second direction are set at an angle, specifically, they can be set at 90°. Figure 1 The “first direction” can be represented by the X-axis, and the “second direction” can be represented by the Y-axis.

[0057] The working principle of the positioning fixture provided in the embodiment of the present application is as follows:

[0058] When the battery shell needs to be positioned, the first driving mechanism 40 drives the base 31 to move along the first direction. At this time, the base 31 drives each tightening component 32 to move synchronously along the first direction, so that each tightening component 32 elastically rests on the first side edge of the battery shell and pushes the battery shell to continue to move along the first direction until the second side edge of the battery shell rests on the first reference mechanism 20, thereby realizing the positioning and clamping of the battery shell along the first direction.

[0059] Since each tightening component 32 is arranged in sequence at intervals along the second direction, it can respectively abut against different positions of the first side edge of the battery shell along the second direction, and each tightening component 32 can be movably arranged on the base 31 along the first direction, one end of an elastic component 33 abuts against a tightening component 32, and the other end abuts against a side of the base 31 away from the tightening component 32. Under the elastic force of the elastic component 33, the tightening component 32 can be pushed to move along the first direction to adjust the position of the tightening component 32 according to the position of the first side edge, so that each tightening component 32 can completely abut against the first side edge, thereby improving the positioning accuracy and avoiding the deformation of the battery shell during clamping and positioning due to the first side edge not being in the same plane, thereby causing excessive gaps at the welding position of the battery shell and the top cover and affecting the welding quality.

[0060] See also Figure 3 and Figure 4 The tightening assembly 32 may include a mounting plate 321 and a tightening member 322. The mounting plate 321 may be movably arranged on the base 31 along the first direction. The tightening member 322 is arranged on the mounting plate 321 for abutting against the first side edge. One end of the elastic assembly 33 abuts against the mounting plate 321, and the other end abuts against a side of the base 31 away from the mounting plate 321. The elastic assembly 33 can elastically push the mounting plate 321 to move along the first direction, thereby driving the tightening member 322 to adjust the position of the tightening member 322 along the first direction, so that the tightening member 322 always elastically abuts against the first side edge.

[0061] See also Figure 3 and Figure 4 The base 31 may include a connecting plate 311 and a side plate 312 disposed on a side of the connecting plate 311 away from the pressing member 322. The mounting plate 321 is movably disposed on the connecting plate 311 along a first direction. One end of the elastic component 33 abuts against a side of the mounting plate 321 away from the pressing member 322, and the other end abuts against the side plate 312. The elastic action of the elastic component 33 allows the mounting plate 321 to move along the first direction, thereby driving the pressing member 322 to move along the first direction. The overall structure is compact, which helps to reduce space.

[0062] See also Figure 3 and Figure 4 The elastic assembly 33 may include a guide rod 331 and an elastic member 332. One end of the guide rod 331 is mounted on the side of the mounting plate 321 away from the pressing member 322, and the other end is movably disposed on the side plate 312 along the first direction. The elastic member 332 is sleeved on the guide rod 331, with one end of the elastic member 332 resting on the side of the mounting plate 321 away from the pressing member 322, and the other end resting on the side plate 312. The provision of the elastic member 332 enables the position of the pressing member 322 to be adjusted along the first direction.

[0063] See also Figure 3 and Figure 4 The first pressing mechanism 30 may further include a first guide rail 34 and a first slider 35 slidably mounted on the first guide rail 34. The first guide rail 34 is disposed on the base 31, and the first slider 35 is connected to the pressing assembly 32. Through the cooperation between the first guide rail 34 and the first slider 35, the pressing assembly 32 can move along the first guide rail 34 in the first direction to avoid positional displacement.

[0064] See also Figure 2 The positioning fixture may further include a second guide rail 50 and a second slider 60 slidably mounted on the second guide rail 50. The second guide rail 50 is disposed on the mounting base 10, and the second slider 60 is connected to the base 31. Through the cooperation between the second guide rail 50 and the second slider 60, the base 31 can move along the second guide rail 50 in the first direction to avoid positional deviation.

[0065] See also Figure 5 The first reference mechanism 20 may include a first substrate 21 and a first reference member 22. The first substrate 21 is disposed on the mounting base 10. The first reference member 22 is disposed on the first substrate 21 and is configured to abut against the second side edge. By pushing the second side edge of the battery housing against the first reference member 22, the battery housing can be clamped and positioned along the first direction.

[0066] See also Figure 5 The first reference member 22 may be an integrally formed structure. By providing the first reference member 22 as an integrally formed structure, a positioning reference may be provided for the battery housing to ensure that the position of the battery housing does not deviate.

[0067] See also Figure 1 and Figure 5 , the battery shell may further include a third side edge and a fourth side edge spaced apart along the second direction. The positioning fixture may further include a second reference mechanism 70, a second tightening mechanism 80 and a second driving mechanism 90. The second reference mechanism 70 is provided on the mounting seat 10. The second tightening mechanism 80 can be movably provided on the mounting seat 10 along the second direction. The second driving mechanism 90 is used to drive the second tightening mechanism 80 to move along the second direction, so that the second tightening mechanism 80 abuts against the third side edge and the fourth side edge of the battery shell abuts against the second reference mechanism 70 during the movement of the battery shell along the second direction. By setting the second reference and the second tightening mechanism 80, the clamping and positioning of the battery shell along the second direction can be achieved.

[0068] See also Figure 5The second reference mechanism 70 may include a second base plate 71 and a second reference member 72. The second base plate 71 is disposed on the mounting base 10. The second reference member 72 is disposed on one side of the second base plate 71 and is configured to abut against the fourth side edge. By pushing the fourth side edge of the battery housing against the second reference member 72, the battery housing can be clamped and positioned along the second direction.

[0069] See also Figure 1 and Figure 6 The positioning fixture may also include a lifting seat 100 and a third driving mechanism 200. The lifting seat 100 can be movably arranged on the mounting seat 10 to support the bottom of the battery shell. The third driving mechanism 200 is used to drive the lifting seat 100 to rise to facilitate the insertion or removal of the battery shell. When the battery shell needs to be clamped and positioned, the lifting seat 100 can be driven to rise by the third driving mechanism 200. At this time, the battery shell can be placed and the bottom of the battery shell is against the lifting seat 100; then, the lifting seat 100 is driven by the third driving mechanism 200 to descend to a preset position. At this time, the battery shell can be positioned and clamped along the first direction and the second direction by the cooperation of the first tightening mechanism 30 and the first reference mechanism 20, and the second tightening mechanism 80 and the second reference mechanism 70. When the battery shell needs to be removed, it is only necessary to loosen the battery shell, and the third driving mechanism 200 drives the lifting seat 100 to rise to remove the battery shell.

[0070] See also Figure 1 and Figure 5 The mounting base 10 may include a bottom plate 11, a top plate 12 spaced apart above the bottom plate 11, and a through hole 121 is provided on the top plate 12. The lifting base 100 can move along the lifting direction to pass through the through hole 121 and extend out of the top plate 12, thereby facilitating the removal and placement of the battery housing. The structure is simple and helps to reduce the volume. The lifting direction of the lifting base 100 can be adjusted by Figure 1 The Z axis in .

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A positioning fixture for positioning a battery housing, wherein the battery housing comprises a first side edge and a second side edge spaced apart along a first direction; characterized in that: include: Mounting seat; A first reference mechanism is provided on the mounting seat; The first tightening mechanism includes a base, at least two tightening components, at least two elastic components, and, a first driving mechanism, driving the base to be movably disposed on the mounting base along the first direction, each of the tightening assemblies being movably disposed on the base along the first direction, and the tightening assemblies being sequentially spaced apart along the second direction, one end of an elastic assembly abutting against one of the tightening assemblies, and the other end abutting against a side of the base away from the tightening assembly; When the first driving mechanism drives the base to move along the first direction, the base drives each of the tightening components to move along the first direction, so that each of the tightening components elastically abuts against the first side edge, and the second side edge of the battery housing abuts against the first reference mechanism during the movement along the first direction; The first direction is arranged at an angle to the second direction.

2. The positioning fixture according to claim 1, characterized in that: The tightening assembly includes: A mounting plate is movably disposed on the base along the first direction; and a tightening member, provided on the mounting plate and configured to abut against the first side edge; One end of the elastic component abuts against the mounting plate, and the other end abuts against a side of the base away from the mounting plate.

3. The positioning fixture according to claim 2, characterized in that: The base includes a connecting plate and a side plate arranged on the side of the connecting plate away from the tightening member. The mounting plate can be movably arranged on the connecting plate along the first direction. One end of the elastic component abuts against the side of the mounting plate away from the tightening member, and the other end abuts against the side plate.

4. The positioning fixture according to claim 3, characterized in that: The elastic component comprises: a guide rod, one end of which is mounted on a side of the mounting plate away from the pressing member, and the other end of which is movably disposed on the side plate along the first direction; and An elastic member is sleeved on the guide rod, and one end of the elastic member abuts against a side of the mounting plate away from the pressing member, and the other end abuts against the side plate.

5. The positioning fixture according to claim 1, characterized in that: The first tightening mechanism further includes a first guide rail and a first slider slidably mounted on the first guide rail. The first guide rail is arranged on the base, and the first slider is connected to the tightening assembly.

6. The positioning fixture according to claim 1, characterized in that: The first reference mechanism comprises: A first substrate is disposed on the mounting seat; and The first reference member is disposed on the first substrate and is used for abutting against the second side edge.

7. The positioning fixture according to claim 6, characterized in that: The first reference member is an integrally formed structure.

8. The positioning fixture according to any one of claims 1 to 7, characterized in that: The battery housing further includes a third side edge and a fourth side edge spaced apart along the second direction; the positioning fixture further includes: A second reference mechanism is provided on the mounting seat; A second tightening mechanism; and The second driving mechanism drives the second pressing mechanism to be movably arranged on the mounting seat along the second direction, so that the second pressing mechanism abuts against the third side edge, and the fourth side edge of the battery housing abuts against the second reference mechanism during the movement of the battery housing along the second direction.

9. The positioning fixture according to claim 8, characterized in that: The second reference mechanism comprises: A second substrate is disposed on the mounting seat; and The second reference member is disposed on the second substrate and is used for abutting against the fourth side edge.

10. The positioning fixture according to any one of claims 1 to 7, characterized in that: The positioning fixture also includes: a lifting seat, movably disposed on the mounting seat and configured to support the bottom of the battery housing; and The third driving mechanism is used to drive the lifting seat to rise to facilitate the placement or removal of the battery housing.

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