Positioning mechanism and welding device

Abstract

The utility model discloses a locating mechanism and a welding device, the locating mechanism comprises a first locating piece, the first locating piece is provided with a containing space, and the containing space is used for containing a supporting cup; wherein the first positioning piece is provided with at least one positioning part, the positioning part is used for positioning a to-be-positioned piece penetrating through the supporting cup, and a gap can be formed between the first positioning piece and the supporting cup, so that only the to-be-positioned piece is positioned by the first positioning piece, and the positioning error can be reduced; and the positioning reliability of the positioning mechanism is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, and more specifically, to a positioning mechanism and a welding device. Background Art

[0002] In the battery production process, for example, in the assembly stage of the battery cell and the steel shell, the accurate positioning of the battery cell or the steel shell is crucial to the performance and safety of the battery. The positioning accuracy of the battery cell or the steel shell not only determines the stability of the internal structure of the battery, but also directly affects the key performance of the battery such as capacity and cycle life.

[0003] The existing positioning method often directly uses a support cup for positioning, that is, the positioning support cup is used to indirectly realize the positioning of the battery cell or steel shell. However, since the positioning support cup will be deformed during the processing, its positioning ability is reduced, and the positioning effect is not ideal. Utility Model Content

[0004] The utility model aims to provide a new technical solution of a positioning mechanism and a welding device.

[0005] According to one aspect of the utility model, a positioning mechanism is provided, comprising:

[0006] A first positioning member, wherein the first positioning member has a receiving space, and the receiving space is used to receive the support cup;

[0007] Wherein, the first positioning member has at least one positioning portion, and the positioning portion is used to position the member to be positioned through which the support cup passes, and the first positioning member can form a gap with the support cup.

[0008] Optionally, along the penetration direction of the member to be positioned, the first positioning member has two positioning portions, and the two positioning portions are used to position the member to be positioned from opposite sides.

[0009] Optionally, the positioning portion includes at least one magnetic member, a groove is formed on the first positioning member, the magnetic member is arranged in the groove, and the magnetic member positions the member to be positioned by magnetic attraction.

[0010] Optionally, the first positioning member further has a positioning flange, and along the penetration direction of the member to be positioned, the positioning flange can abut against the member to be positioned.

[0011] Optionally, it also includes a support plate and a second positioning member, the second positioning member and the first positioning member are respectively arranged on the support plate, and the arrangement direction of the second positioning member and the first positioning member is consistent with the penetration direction of the member to be positioned, and the second positioning member and the first positioning member are used to position the member to be positioned from both sides.

[0012] Optionally, the first positioning member is fixedly arranged on the support plate and abuts against the side surface of the member to be positioned; the second positioning member is movably arranged on the support plate, and the second positioning member can move and abut against the bottom surface of the member to be positioned.

[0013] Optionally, it further includes a first mounting member, the first mounting member is arranged on the support plate, the first positioning member is arranged on the first mounting member, the first mounting member has a through slot, and the second positioning member can pass through the through slot and abut against the member to be positioned.

[0014] Optionally, the second positioning member is a pressure rod and further includes a second mounting member, the second mounting member is movably connected to the support plate, one end of the pressure rod is connected to the second mounting member, and the other end of the pressure rod can extend from the through slot.

[0015] Optionally, a driving member is further included, wherein the driving member is connected to the second mounting member, and the driving member is used to drive the second mounting member to move along the penetration direction of the member to be positioned.

[0016] Optionally, the driving member includes a first driving source, and an output end of the first driving source is connected to the second mounting member;

[0017] Alternatively, the driving member includes a transmission member, and the positioning mechanism further includes a second driving source, an output end of the second driving source is connected to the transmission member, and the transmission member can drive the second mounting member to move along the penetration direction of the member to be positioned.

[0018] According to another aspect of the utility model, a welding device is provided, comprising the above-mentioned positioning mechanism.

[0019] A technical effect of the utility model is:

[0020] The positioning mechanism includes a first positioning member, which has a accommodating space for accommodating a support cup; wherein the first positioning member has at least one positioning portion, which is used to position the member to be positioned through which the support cup passes, and the first positioning member can form a gap with the support cup, so that the first positioning member only positions the member to be positioned, thereby reducing positioning errors and improving the positioning reliability of the positioning mechanism.

[0021] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0023] Figure 1 It is a schematic diagram of a first positioning member of an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of a positioning mechanism of an embodiment of the utility model;

[0025] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0026] Figure 4 is another schematic diagram of a positioning mechanism according to an embodiment of the utility model;

[0027] Figure 5 It is another schematic diagram of a positioning mechanism of an embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of a welding device according to an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1. first positioning member; 11. accommodating space; 12. positioning part; 13. limiting flange; 2. supporting cup; 3. member to be positioned; 4. supporting plate; 5. second positioning member; 6. first mounting member; 61. through groove; 7. second mounting member; 8. driving part;

[0031] 100. Positioning mechanism; 200. Turret; 300. Transmission mechanism. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0034] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0035] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0036] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] The utility model provides a positioning mechanism 100 which can be used in a welding device. The positioning mechanism 100 is used to position a part to be positioned 3, and the part to be positioned 3 can be a battery core, a steel shell, etc.

[0038] like Figures 1 to 3 As shown, the positioning mechanism 100 provided by the utility model includes:

[0039] A first positioning member 1, wherein the first positioning member 1 has a receiving space 11, and the receiving space 11 is used to receive the support cup 2;

[0040] The first positioning member 1 has at least one positioning portion 12 , and the positioning portion 12 is used to position the to-be-positioned member 3 through which the cup 2 passes, and a gap can be formed between the first positioning member 1 and the cup 2 .

[0041] like Figures 1 to 3 As shown, the first positioning member 1 is the main structure of the positioning mechanism 100, and its overall shape and size can be designed according to actual needs. The first positioning member 1 has a receiving space 11 inside, and the receiving space 11 is used to receive the cup 2. The shape and size of the receiving space 11 are adapted to the cup 2 to ensure that the cup 2 can be placed in the receiving space 11.

[0042] The first positioning member 1 is provided to form a gap with the cup 2 so that the first positioning member 1 does not position the cup 2 itself, but only positions the member to be positioned 3, thereby reducing positioning errors and improving the positioning reliability of the positioning mechanism 100.

[0043] For example, the installation of the support cup 2 can be achieved only by the friction force between the support cup 2 and the to-be-positioned member 3 , so that the support cup 2 is not in contact with the first positioning member 1 .

[0044] In another embodiment, the cup 2 can also be directly snap-fitted to the first positioning member 1, and its snap-fitting portion is staggered from the assembly area of ​​the to-be-positioned member 3. For example, a mounting portion can be formed on the first positioning member 1, and the mounting portion is used to cooperate with the connecting portion on the cup 2 to connect the cup 2 to the first positioning member 1. One of the mounting portion and the connecting portion can be a protrusion, and the other of the mounting portion and the connecting portion can be a groove, so as to form a snap-fitting fit, which is convenient for the installation and removal of the cup 2.

[0045] like Figure 1As shown, one or more positioning parts 12 are provided on the first positioning member 1. The positioning part 12 can be a positioning ring, a positioning sheet, a positioning magnet, etc. In the process of inserting the positioning member 3 into the cup 2, the positioning part 12 can position the positioning member 3, thereby ensuring the position accuracy of the positioning member 3, which is convenient for the subsequent process.

[0046] In addition, a recessed portion may be provided on the first positioning member 1, and when the positioning member 3 is inserted, the recessed portion can abut against the side wall of the positioning member 3. The recessed portion is usually in an arc shape, which can protect the positioning member 3.

[0047] Optionally, along the penetration direction of the member to be positioned 3 , the first positioning member 1 has two positioning portions 12 , and the two positioning portions 12 are used to position the member to be positioned 3 from opposite sides.

[0048] Specifically, the two positioning parts 12 can be located on the upper and lower sides of the first positioning member 1 respectively, so that in the process of inserting the member to be positioned 3, the two positioning parts 12 can position the member to be positioned 3 from the upper and lower sides, thereby avoiding shaking or position deviation of the member to be positioned 3 and ensuring the position accuracy of the member to be positioned 3.

[0049] Optionally, the positioning portion 12 includes at least one magnetic member, a groove is formed on the first positioning member 1, the magnetic member is arranged in the groove, and the magnetic member positions the member to be positioned 3 by magnetic attraction.

[0050] like Figure 1 As shown, through the magnetic attraction of the magnetic part, the part to be positioned 3 can be quickly and accurately adsorbed on the predetermined position of the first positioning part 1, which not only simplifies the complexity of the positioning mechanism 100, but also improves the positioning efficiency and accuracy. Moreover, the magnetic attraction of the magnetic part can realize non-contact positioning, and this non-contact positioning method can also reduce wear and friction, thereby extending the service life of the positioning mechanism 100 and the part to be positioned 3.

[0051] In addition, the number and arrangement of magnetic parts can be adjusted to meet different positioning requirements.

[0052] Optionally, the first positioning member 1 further has a limiting flange 13 , and along the penetration direction of the member 3 to be positioned, the limiting flange 13 can abut against the member 3 to be positioned.

[0053] like Figures 1 to 3 As shown, the limiting flange 13 is located at the end of the first positioning member 1. During the insertion process of the member to be positioned 3, the limiting flange 13 can limit the member to be positioned 3, thereby enhancing the position stability of the member to be positioned 3 in the first positioning member 1 and preventing it from shaking or shifting due to external force.

[0054] The limiting flange 13 can cooperate with the positioning portion 12 to position the to-be-positioned member 3 , thereby enhancing the positioning capability of the first positioning member 1 and improving the positioning reliability of the positioning mechanism 100 .

[0055] Optionally, it also includes a support plate 4 and a second positioning member 5, the second positioning member 5 and the first positioning member 1 are respectively arranged on the support plate 4, and the arrangement direction of the second positioning member 5 and the first positioning member 1 is consistent with the penetration direction of the member to be positioned 3, and the second positioning member 5 and the first positioning member 1 are used to position the member to be positioned 3 from both sides.

[0056] like Figure 4 and Figure 5 As shown, the support plate 4 is used to carry the first positioning member 1 and the second positioning member 5, which can facilitate the installation of the first positioning member 1 and the second positioning member 5. The first positioning member 1 and the second positioning member 5 are arranged along the penetration direction of the member to be positioned 3, that is, the vertical direction shown in the figure, so that the second positioning member 5 and the first positioning member 1 can position the member to be positioned 3 from both the upper and lower directions, thereby avoiding the shaking or position deviation of the member to be positioned 3, and ensuring the position accuracy of the member to be positioned 3.

[0057] Optionally, the first positioning member 1 is fixedly arranged on the support plate 4 and abuts against the side surface of the member to be positioned 3; the second positioning member 5 is movably arranged on the support plate 4, and the second positioning member 5 can move and abut against the bottom surface of the member to be positioned 3.

[0058] like Figure 4 and Figure 5 As shown, the first positioning member 1 can be fixedly set on the support plate 4, and the first positioning member 1 can be set to abut against the side of the member to be positioned 3; and the second positioning member 5 can move along the support plate 4 and abut against the bottom surface of the member to be positioned 3, so as to achieve bidirectional positioning of the member to be positioned 3.

[0059] In another embodiment, the first positioning member 1 can be movably arranged on the support plate 4, and the first positioning member 1 can move and abut against the side surface of the member to be positioned 3; and the second positioning member 5 can move along the support plate 4 and abut against the bottom surface of the member to be positioned 3, thereby realizing bidirectional positioning of the member to be positioned 3, and facilitating adaptation to members to be positioned 3 of different shapes and sizes.

[0060] Optionally, it further includes a first mounting member 6, which is arranged on the support plate 4, and the first positioning member 1 is arranged on the first mounting member 6. The first mounting member 6 has a through slot 61, and the second positioning member 5 can pass through the through slot 61 and abut against the member to be positioned 3.

[0061] like Figure 4 and Figure 5As shown, the first mounting member 6 is used to set and support the first positioning member 1, that is, the first positioning member 1 can be connected to the support plate 4 through the first mounting member 6, so as to adapt to different assembly requirements. A through slot 61 is provided on the first mounting member 6, and the through slot 61 is used to allow the second positioning member 5 to pass through, so that the second positioning member 5 is easy to abut against the member to be positioned 3 and form a positioning.

[0062] Optionally, the second positioning member 5 is a pressure rod and further includes a second mounting member 7 , the second mounting member 7 is movably connected to the support plate 4 , one end of the pressure rod is connected to the second mounting member 7 , and the other end of the pressure rod can extend from the through slot 61 .

[0063] like Figure 4 and Figure 5 As shown, the second positioning member 5 can be a pressure rod, that is, the second positioning member can be a rod-shaped structure. The second mounting member 7 is movably connected to the support plate 4, for example, a guide rail can be provided on the support plate 4, and the second mounting member 7 is movably connected to the guide rail, so that the second mounting member 7 can move along the guide rail and drive the pressure rod provided thereon to move together, so that the other end of the pressure rod can extend from the through slot 61 and abut against the member to be positioned 3.

[0064] Optionally, a driving part 8 is also included, which is connected to the second mounting member 7. The driving part 8 is used to drive the second mounting member 7 to move along the penetration direction of the member to be positioned 3, so that the second mounting member 7 can drive the pressure rod arranged thereon to move together, so that the other end of the pressure rod can extend from the through groove 61 and abut against the member to be positioned 3.

[0065] Optionally, the driving part 8 includes a first driving source, and an output end of the first driving source is connected to the second mounting member 7;

[0066] Alternatively, the driving portion 8 includes a transmission member, and the positioning mechanism 100 also includes a second driving source, the output end of the second driving source is connected to the transmission member, and the transmission member can drive the second mounting member 7 to move along the penetration direction of the member 3 to be positioned.

[0067] Specifically, in one embodiment, the driving part 8 can be provided to include a first driving source, which includes but is not limited to a motor and a cylinder, and the output end of the first driving source is connected to the second mounting member 7, so that the second mounting member 7 can drive the pressure rod to move together under the drive of the first driving source.

[0068] In another embodiment, the driving part 8 can be configured to include a transmission member, and the positioning mechanism 100 also includes a second driving source, the second driving source includes but is not limited to a motor and a cylinder, the transmission member is connected to the output end of the second driving source, and can transmit the drive output by the second driving source to the second mounting member 7, so that the second mounting member 7 can drive the pressure rod to move together.

[0069] like Figure 6 As shown, the utility model also provides a welding device, including the above-mentioned positioning mechanism 100. The positioning mechanism 100 is located on the welding mechanism, and the welding mechanism is arranged on the turret 200 of the welding device, so that the welding mechanism can rotate with the turret 200. During the rotation process, the driving part 8 of the positioning mechanism 100 can be connected to the transmission mechanism 300 and move under the drive of the transmission mechanism 300.

[0070] For example, the transmission mechanism 300 may be a cam mechanism, and the driving part 8 may be a roller. During the rotation process, the roller may move vertically along the track of the cam mechanism, and drive the second mounting member 7 to move vertically.

[0071] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0072] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A positioning mechanism, characterized in that: include: A first positioning member (1), the first positioning member (1) having a receiving space (11), the receiving space (11) being used to receive the support cup (2); The first positioning member (1) has at least one positioning portion (12), and the positioning portion (12) is used to position the member to be positioned (3) that passes through the support cup (2), and a gap can be formed between the first positioning member (1) and the support cup (2).

2. A positioning mechanism according to claim 1, characterized in that: Along the penetration direction of the piece to be positioned (3), the first positioning piece (1) has two positioning portions (12), and the two positioning portions (12) are used to position the piece to be positioned (3) from opposite sides.

3. A positioning mechanism according to claim 1, characterized in that: The positioning portion (12) comprises at least one magnetic member, the first positioning member (1) is provided with a groove, the magnetic member is arranged in the groove, and the magnetic member positions the member to be positioned (3) through magnetic attraction.

4. A positioning mechanism according to claim 1, characterized in that: The first positioning member (1) also has a limiting flange (13), and along the penetration direction of the member to be positioned (3), the limiting flange (13) can abut against the member to be positioned (3).

5. A positioning mechanism according to claim 1, characterized in that: It also comprises a support plate (4) and a second positioning member (5), wherein the second positioning member (5) and the first positioning member (1) are respectively arranged on the support plate (4), and the arrangement direction of the second positioning member (5) and the first positioning member (1) is consistent with the penetration direction of the member to be positioned (3), and the second positioning member (5) and the first positioning member (1) are used to position the member to be positioned (3) from both sides.

6. A positioning mechanism according to claim 5, characterized in that: The first positioning member (1) is fixedly arranged on the support plate (4) and abuts against the side surface of the member to be positioned (3); the second positioning member (5) is movably arranged on the support plate (4), and the second positioning member (5) is movable and abuts against the bottom surface of the member to be positioned (3).

7. A positioning mechanism according to claim 6, characterized in that: The invention also comprises a first mounting member (6), wherein the first mounting member (6) is arranged on the supporting plate (4), the first positioning member (1) is arranged on the first mounting member (6), the first mounting member (6) has a through slot (61), and the second positioning member (5) can pass through the through slot (61) and abut against the member to be positioned (3).

8. A positioning mechanism according to claim 7, characterized in that: The second positioning member (5) is a pressure rod and further comprises a second mounting member (7), wherein the second mounting member (7) is movably connected to the support plate (4), one end of the pressure rod is connected to the second mounting member (7), and the other end of the pressure rod can extend from the through slot (61).

9. A positioning mechanism according to claim 8, characterized in that: It also comprises a driving part (8), wherein the driving part (8) is connected to the second mounting part (7), and the driving part (8) is used to drive the second mounting part (7) to move along the penetration direction of the part to be positioned (3).

10. A positioning mechanism according to claim 9, characterized in that: The driving part (8) comprises a first driving source, and an output end of the first driving source is connected to the second mounting member (7); Alternatively, the driving portion (8) includes a transmission member, and the positioning mechanism also includes a second driving source, the output end of the second driving source is connected to the transmission member, and the transmission member can drive the second mounting member (7) to move along the penetration direction of the member to be positioned (3).

11. A welding device, characterized in that: The invention comprises the positioning mechanism as claimed in any one of claims 1 to 10.

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