Positioning device for FSW cold plate

Abstract

The utility model discloses an FSW cold plate positioning device which comprises a machine frame and a positioning mechanism, the machine frame is used for placing a frame and a cold plate, the cold plate is placed on the frame, the frame is provided with a first positioning hole, the cold plate is provided with a second positioning hole, the positioning mechanism comprises a driving device and an expansion sleeve assembly, the driving device is arranged on the machine frame, and the expansion sleeve assembly is in transmission connection with the driving device. The central axis of the expansion sleeve assembly coincides with the central axis of the first positioning hole, and the driving device can drive the expansion sleeve assembly to expand outwards to abut against the inner side wall of the second positioning hole so that the cold plate can move till the axis of the second positioning hole coincides with the axis of the first positioning hole. The driving device drives the expansion sleeve assembly to expand outwards, so that the second positioning hole and the expansion sleeve assembly are adjusted to be coaxial, the cold plate and the frame can be accurately positioned, the gap between the cold plate and the frame is adjusted to be reasonable in size, the follow-up friction welding process is facilitated, in the welding process, the expansion sleeve assembly can further fix the cold plate, the cold plate does not deviate, and the welding quality is improved. Therefore, the welding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile manufacturing related technical field especially relates to a kind of for FSW cold plate positioning device. BACKGROUND

[0002] The main process of the battery pack lower box is friction welding at present, and the matching gap between the water-cooled plate and the frame is particularly important. Too small gap will lead to insufficient welding strength, and too large gap will cause defects such as pear groove and crack. The uneven gap will also affect the welding quality. Therefore, it is necessary to accurately control the gap size of the cold plate and the frame during friction stir welding to ensure its uniformity, so as to ensure the welding quality. In the prior art, the positioning between the water-cooled plate and the frame relies only on manual correction, which is low in operation efficiency, and the quality of the subsequent welded product is generally low. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a kind of for FSW cold plate positioning device, which can solve the problems of low positioning efficiency and inaccurate positioning of the cold plate and the frame.

[0004] According to the first aspect embodiment of the utility model, a kind of for FSW cold plate positioning device, it include: rack and positioning mechanism, the rack is used to place frame and cold plate, the cold plate is placed in the frame, the frame is equipped with first positioning hole, the cold plate is equipped with second positioning hole, the positioning mechanism includes drive device and expansion sleeve assembly, the drive device is equipped in the rack, the expansion sleeve assembly is connected with the drive device transmission, the middle axis of the first positioning hole can coincide with the middle axis of the expansion sleeve assembly, the drive device can drive the expansion sleeve assembly to expand to the inner side wall of the second positioning hole, so that the cold plate moves to the axis of the second positioning hole and the axis of the first positioning hole coincide.

[0005] According to the utility model embodiment, a kind of for FSW cold plate positioning device, at least has following beneficial effects: frame can be placed in rack, and first positioning hole is aligned with the middle axis of expansion sleeve assembly, then cold plate is roughly placed in frame, second positioning hole and first positioning hole are not aligned at this time, then positioning mechanism is operated, drive device drives expansion sleeve assembly to expand, in the process of expanding, it will be in contact with second positioning hole, and gradually adjust the position of cold plate, so that second positioning hole and expansion sleeve assembly are adjusted to coaxial, so as to be adjusted to second positioning hole and first positioning hole coaxial, cold plate and frame can be accurately positioned between them at this time, so that the gap between cold plate and frame is adjusted to reasonable size, so as to facilitate subsequent friction welding process, in the process of welding, expansion sleeve assembly can also fix cold plate, so that it is not deviated, thereby improving the welding quality.

[0006] According to some embodiments of the utility model, the expansion sleeve assembly comprises at least two oppositely arranged movable members, a sliding structure is arranged between the two movable members, and the driving device can drive the movable members to slide away from each other.

[0007] According to some embodiments of the utility model, an elastic member is further arranged between the movable members, and the elastic member can drive the two movable members to move towards each other.

[0008] According to some embodiments of the utility model, the outer side wall of the movable member is provided with an arc surface with the same curvature as the inner side wall of the second positioning hole.

[0009] According to some embodiments of the utility model, the bottom of the movable member is provided with a transmission groove, the side wall of the transmission groove is provided with an inner tapered surface, the driving device comprises a driving member and a pull rod, the pull rod is in transmission connection with the driving member, the top of the pull rod is provided with a transmission part, the transmission part is in sliding connection with the transmission groove and abuts against the inner tapered surface, and when the driving device drives the pull rod to move downwards, the transmission part can be in transmission cooperation with the inner tapered surface, so that the movable members slide away from each other.

[0010] According to some embodiments of the utility model, the outer side wall of the transmission part is provided with an outer tapered surface, and the outer tapered surface and the inner tapered surface are both inclined inward along the direction from top to bottom.

[0011] According to some embodiments of the utility model, the driving member can also drive the pull rod to rotate around its axis and can drive the expansion sleeve assembly to rotate to a first position and a second position, in the first position, the driving member can drive the expansion sleeve assembly to pass through the first positioning hole, and when the expansion sleeve assembly passes through the first positioning hole, the driving member can drive the expansion sleeve assembly to rotate to the second position, so that the bottom of the expansion sleeve assembly can abut against the frame.

[0012] According to some embodiments of the utility model, the sliding structure comprises a sliding rod and a sliding hole, the sliding rod is arranged in one of the movable members, the sliding hole is arranged in the other movable member, the sliding rod can be inserted into the sliding hole and can slide relative to each other.

[0013] According to some embodiments of the utility model, the end of the sliding rod is provided with a guide tapered head to guide the sliding rod to be inserted into the sliding hole.

[0014] According to some embodiments of the utility model, a plurality of positioning mechanisms are arranged, the frame is provided with a first positioning hole corresponding in number to the positioning mechanisms, and the cold plate is provided with a second positioning hole corresponding in number to the positioning mechanisms.

[0015] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of embodiments of the present application, which will be described with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and additional aspects and advantages of the present application will become apparent from and will be elucidated with reference to the embodiments described hereinafter with reference to the accompanying drawings, in which:

[0017] Figure 1 is a general schematic view of some embodiments of the present application;

[0018] Figure 2 is Figure 1 is a partial enlarged view of A in FIG.

[0019] Figure 3 is an exploded view of some parts of some embodiments of the present application;

[0020] Figure 4 is a sectional view of some embodiments of the present application in which the expansion sleeve assembly is in the first position;

[0021] Figure 5 is a sectional view of some embodiments of the present application in which the expansion sleeve assembly is in the second position and is expanded outwardly;

[0022] Figure 6 is Figure 4 is a partial enlarged view of B in FIG.

[0023] Figure 7 is Figure 5 is a partial enlarged view of C in FIG.

[0024] Figure 8 is a structural schematic view of the expansion sleeve assembly;

[0025] Figure 9 is Figure 8 is an exploded view.

[0026] LIST OF REFERENCE NUMERALS:

[0027] frame 100;

[0028] positioning mechanism 200, driving device 210, driving member 211, pull rod 212, transmission part 2121, outer conical surface 2122, expansion sleeve assembly 220, movable member 221, arc surface 2211, transmission groove 2212, inner conical surface 2213, sliding structure 222, sliding rod 2221, guide conical head 2222, sliding hole 2223, elastic member 223;

[0029] frame 300, first positioning hole 310;

[0030] cold plate 400, second positioning hole 410. DETAILED DESCRIPTION

[0031] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Referring to Figures 1 to 7According to the first aspect embodiment of the utility model, a positioning device for FSW cold plate is provided, which comprises a rack 100 and a positioning mechanism 200, the rack 100 is used for placing a frame 300 and a cold plate 400, the cold plate 400 is placed in the frame 300, the frame 300 is provided with a first positioning hole 310, the cold plate 400 is provided with a second positioning hole 410, the positioning mechanism 200 comprises a driving device 210 and a sleeve expansion assembly 220, the driving device 210 is arranged on the rack 100, the sleeve expansion assembly 220 is in transmission connection with the driving device 210, the central axis of the sleeve expansion assembly 220 coincides with the central axis of the first positioning hole 310, the driving device 210 can drive the sleeve expansion assembly 220 to expand outward to abut against the inner side wall of the second positioning hole 410, so that the axis of the cold plate 400 is coincided with the axis of the second positioning hole 410 and the first positioning hole 310. The cold plate 400 is placed in the frame 300, at this time, the second positioning hole 410 and the first positioning hole 310 are not aligned, through the working of the positioning mechanism 200, the sleeve expansion assembly 220 and the first positioning hole 310 of the frame 300 are arranged on the same axis, the driving device 210 drives the sleeve expansion assembly 220 to expand outward, in the process of expanding outward, the sleeve expansion assembly 220 abuts against the second positioning hole 410 and gradually adjusts the position of the cold plate 400, so that the second positioning hole 410 and the sleeve expansion assembly 220 are coaxial, thereby the second positioning hole 410 and the first positioning hole 310 can be adjusted to be coaxial, at this time, the cold plate 400 and the frame 300 can be accurately positioned, so that the gap between the cold plate 400 and the frame 300 is adjusted to a reasonable size, so as to facilitate the subsequent friction welding process, in the welding process, the sleeve expansion assembly 220 can also fix the cold plate 400, so that the cold plate 400 is not deviated, thereby the welding quality is improved.

[0035] Specifically, it needs to be explained that the thickness of the cold plate 400 is small, and the strength is insufficient, and it is not convenient to use a clamp to clamp and position on the side. Therefore, the positioning mechanism 200 can be provided on the corresponding position required by the rack 100, and the frame 300 has a first positioning hole 310, and when positioning, the frame 300 is placed on the rack 100, and the first positioning hole 310 can be aligned with the central axis of the expansion sleeve assembly 220. The alignment manner is not specifically limited here, the frame 300 is set, and then the cold plate 400 is placed on the frame 300, and can be roughly positioned first, at this time the second positioning hole 410 corresponds to the first positioning hole 310, at this time the expansion sleeve assembly 220 can be driven to expand outward by the driving device 210. The specific expansion structure of the expansion sleeve assembly 220 is not limited here, and it can be understood that the central axis of the expansion sleeve assembly 220 does not change after expansion, and the expansion sleeve assembly 220 expands to abut the second positioning hole 410. At this time, the cold plate 400 moves relative to the frame 300 and can move to the second positioning hole 410, and the central axis of the expansion sleeve assembly 220 coincides, so that the central axis of the second positioning hole 410 and the first positioning hole 310 coincides, to achieve the effect of accurate positioning of the cold plate 400, and the cold plate 400 is not easy to be damaged. The gap between the cold plate 400 and the frame 300 can meet the process requirements of friction welding, and the expansion sleeve assembly 220 can limit the movement of the cold plate 400 during welding, thereby ensuring the welding quality.

[0036] Referring to Figures 1 to 7 In some embodiments of the present application, the expansion sleeve assembly 220 includes at least two oppositely arranged movable members 221, and a sliding structure 222 is arranged between the two movable members 221, and the driving device 210 can drive the movable members 221 to slide away from each other. Specifically, two movable members 221 can be provided, and the two movable members 221 are arranged opposite to each other and have a sliding structure 222 therebetween. The specific structure of the sliding structure 222 is not limited here, and through the sliding structure 222, the two symmetrical movable members 221 can slide towards or away from each other, and the driving part of the driving device 210 can be in transmission cooperation with the two movable members 221. The specific transmission structure is not limited here, and the driving device 210 can drive the two movable members 221 to slide away from each other to expand, and then abut the second positioning hole 410 to realize positioning. The structure is simple and easy to manufacture.

[0037] Referring to Figures 1 to 7In some embodiments of the utility model, elastic member 223 is further arranged between movable parts 221, and elastic member 223 can drive two movable parts 221 to approach each other. Specifically, elastic member 223 can be arranged as a tension spring, one end of the tension spring is connected with one movable part 221, and the other end is connected with the other movable part 221, so that the two movable parts 221 are pulled closer to each other, thereby achieving the reset function without relying on the driving device 210, and the structure is simple.

[0038] It can be understood that multiple elastic members 223 can be arranged and spaced apart between the two movable parts 221.

[0039] Referring to Figure 2 In some embodiments of the utility model, the outer side wall of the movable part 221 is provided with an arc surface 2211 with the same curvature as the inner side wall of the second positioning hole 410. Specifically, the movable part 221 is provided with an arc surface 2211 on the side away from the other movable part 221, and the arc surface 2211 is used to abut against the inner wall of the second positioning hole 410. The curvature of the arc surface 2211 is set to be consistent with the curvature of the inner side wall of the second positioning hole 410, so that when the movable part 221 expands outward, it can be tightly abutted with the second positioning hole 410, and when the position is adjusted, the coaxiality can be higher and the positioning can be more accurate.

[0040] Referring to Figure 6 and Figure 7 In some embodiments of the utility model, the movable part 221 has a transmission groove 2212 at the bottom, the side wall of the transmission groove 2212 is provided with an inner tapered surface 2213, the driving device 210 includes a driving part 211 and a pull rod 212, the pull rod 212 is in transmission connection with the driving part 211, the top of the pull rod 212 is provided with a transmission part 2121, the transmission part 2121 is in sliding connection with the transmission groove 2212 and abuts against the inner tapered surface 2213, and when the driving device 210 drives the pull rod 212 to move downward, the transmission part 2121 can be in transmission with the inner tapered surface 2213 to make the movable parts 221 slide away from each other. Specifically, the transmission part 2121 at the top of the pull rod 212 can be inserted into the transmission groove 2212 and can move up and down relative to the transmission groove 2212, and the side wall of the transmission groove 2212 is provided with an inner tapered surface 2213, which can be inclined inward from top to bottom. When the driving part 211 drives the pull rod 212 to move downward, the transmission part 2121 abuts against and transmits with the inner tapered surface 2213, which can drive the movable parts 221 to move outward, so that the movable parts 221 can expand outward. And through the tapered surface transmission, the transmission is more smooth.

[0041] It can be understood that the transmission groove 2212 can be arranged through the movable piece 221 close to the side of the other movable piece 221, and the two transmission grooves 2212 can be combined by the combination of the two movable pieces 221, and the transmission part 2121 can be put into the transmission groove 2212 when the two movable pieces 221 are expanded outward, and the two movable pieces 221 can abut against the transmission part 2121 after the elastic member 223 is recovered.

[0042] With reference to Figure 6 And Figure 7 In some embodiments of the utility model, the outer side wall of transmission part 2121 is equipped with outer taper surface 2122, outer taper surface 2122 and inner taper surface 2213 all incline inward along the direction from top to bottom. Specifically, transmission part 2121 can be equipped with outer taper surface 2122, the inclination direction of outer taper surface 2122 and inner taper surface 2213 is same, all incline inward along the direction from top to bottom, the cooperation of two taper surfaces is more smooth, the resistance is smaller, and it is convenient to drive movable piece 221 to expand outward.

[0043] With reference to Figure 6 And Figure 7In some embodiments of the utility model, driving piece 211 can also drive pull rod 212 to rotate around its axis, and can drive expansion sleeve assembly 220 to rotate to the first position and the second position, in the first position, driving piece 211 can drive expansion sleeve assembly 220 to pass through first positioning hole 310, when expansion sleeve assembly 220 passes through first positioning hole 310, driving piece 211 can drive expansion sleeve assembly 220 to rotate to the second position, so that the bottom of expansion sleeve assembly 220 can abut against frame 300. Specifically, in the actual use process, driving piece 211 can first drive expansion sleeve assembly 220 to the first position, then frame 300 is placed on rack 100, and first positioning hole 310 passes through expansion sleeve assembly 220, it can be understood that expansion sleeve assembly 220 is in the recovery state under the elastic force of elastic member 223 at this time, the shape of first positioning hole 310 matches the contour of expansion sleeve assembly 220 at this time, so that the central axis of first positioning hole 310 and expansion sleeve assembly 220 can be aligned at this time, after frame 300 is placed, cold plate 400 can be placed, and expansion sleeve assembly 220 is inserted into second positioning hole 410 for pre-positioning, then driving piece 211 can drive expansion sleeve assembly 220 to rotate to the second position, at this time, expansion sleeve assembly 220 cannot pass through first positioning hole 310, first positioning hole 310 can be set as a non-circular hole, then driving piece 211 drives pull rod 212 to move downward, and transmits through the taper surface to make the two movable pieces 221 expand outward in opposite directions and abut against the inner wall of second positioning hole 410, so as to realize the positioning and adjustment of cold plate 400, without manual adjustment, the degree of automation is high, after the welding of cold plate 400 is completed, driving piece 211 drives pull rod 212 upward, at this time, elastic member 223 drives the two movable pieces 221 to recover, then driving piece 211 drives expansion sleeve assembly 220 to rotate back to the first position, so that frame 300 can be taken out. The positioning process does not need manual adjustment, the degree of automation is high, the positioning effect is good, and the welding quality can be improved.

[0044] Referring to Figures 6 to 9 In some embodiments of the utility model, the sliding structure 222 includes a slide rod 2221 and a slide hole 2223, the slide rod 2221 is arranged on one movable piece 221, and the slide hole 2223 is arranged on the other movable piece 221, the slide rod 2221 can be inserted into the slide hole 2223 and can slide relative to each other. Specifically, the slide rod 2221 and the slide hole 2223 are oppositely arranged, the slide rod 2221 is inserted into the slide hole 2223, so that the movable pieces 221 can slide relative to each other, and the structure is simple.

[0045] Referring to Figure 9 In some embodiments of the utility model, the end of the slide rod 2221 is provided with a guide conical head 2222 to guide the insertion of the slide rod 2221 into the slide hole 2223. Specifically, when the guide conical head 2222 at the end of the slide rod 2221 cooperates with the slide hole 2223, it can be guided to align and is not easy to fall off the hole position.

[0046] In some embodiments of the present application, the positioning mechanism 200 is provided in plurality, the frame 300 is provided with a corresponding number of first positioning holes 310 corresponding to the positioning mechanism 200, and the cold plate 400 is provided with a corresponding number of second positioning holes 410 corresponding to the positioning mechanism 200. Specifically, the positioning mechanism 200 can be arranged according to the position to be positioned, and the first positioning hole 310 and the second positioning hole 410 are arranged on the corresponding positions of the cold plate 400 and the frame 300 to meet the use requirements.

[0047] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A positioning device for FSW cold plates, characterized in that, include: A frame (100) is used to place a frame (300) and a cold plate (400), the cold plate (400) is placed on the frame (300), the frame (300) is provided with a first positioning hole (310), and the cold plate (400) is provided with a second positioning hole (410). The positioning mechanism (200) includes a driving device (210) and an expansion sleeve assembly (220). The driving device (210) is located on the frame (100). The expansion sleeve assembly (220) is connected to the driving device (210) in a transmission manner. The central axis of the first positioning hole (310) can coincide with the central axis of the expansion sleeve assembly (220). The driving device (210) can drive the expansion sleeve assembly (220) to expand outward to abut against the inner wall of the second positioning hole (410), so that the cold plate (400) can move until the axis of the second positioning hole (410) coincides with the axis of the first positioning hole (310).

2. The positioning device for FSW cold plates according to claim 1, characterized in that, The expansion sleeve assembly (220) includes at least two oppositely arranged movable parts (221), and a sliding structure (222) is provided between the two movable parts (221). The driving device (210) can drive the movable parts (221) to slide away from each other.

3. A positioning device for FSW cold plates according to claim 2, characterized in that, An elastic element (223) is also provided between the movable parts (221), and the elastic element (223) can drive the two movable parts (221) to move closer to each other.

4. A positioning device for FSW cold plates according to claim 2, characterized in that, The outer wall of the movable part (221) is provided with an arc surface (2211) with the same curvature as the inner wall of the second positioning hole (410).

5. A positioning device for FSW cold plates according to claim 3, characterized in that, The movable part (221) has a transmission groove (2212) at its bottom. The side wall of the transmission groove (2212) is provided with an inner conical surface (2213). The driving device (210) includes a driving part (211) and a pull rod (212). The pull rod (212) is connected to the driving part (211) in a transmission manner. The top of the pull rod (212) is provided with a transmission part (2121). The transmission part (2121) is slidably connected to the transmission groove (2212) and abuts against the inner conical surface (2213). When the driving device (210) drives the pull rod (212) to move downward, the transmission part (2121) can cooperate with the inner conical surface (2213) in a transmission manner so that the movable part (221) slides away from each other.

6. A positioning device for FSW cold plates according to claim 5, characterized in that, The outer wall of the transmission part (2121) is provided with an outer conical surface (2122), and both the outer conical surface (2122) and the inner conical surface (2213) are inclined inward in a direction from top to bottom.

7. A positioning device for FSW cold plates according to claim 5, characterized in that, The drive member (211) can also drive the pull rod (212) to rotate about its axis and drive the expansion sleeve assembly (220) to rotate to a first position and a second position. In the first position, the drive member (211) can drive the expansion sleeve assembly (220) to pass through the first positioning hole (310). When the expansion sleeve assembly (220) passes through the first positioning hole (310), the drive member (211) can drive the expansion sleeve assembly (220) to rotate to the second position so that the bottom of the expansion sleeve assembly (220) can abut against the frame (300).

8. A positioning device for FSW cold plates according to claim 2, characterized in that, The sliding structure (222) includes a slide rod (2221) and a sliding hole (2223). The slide rod (2221) is disposed on one of the movable parts (221), and the sliding hole (2223) is disposed on the other movable part (221). The slide rod (2221) can be inserted into the sliding hole (2223) and can slide relative to each other.

9. A positioning device for FSW cold plates according to claim 8, characterized in that, The slide rod (2221) is provided with a guide cone head (2222) at its end to guide the slide rod (2221) into the slide hole (2223).

10. A positioning device for FSW cold plates according to claim 1, characterized in that, The positioning mechanism (200) is provided in multiple ways, the frame (300) is provided with a number of first positioning holes (310) corresponding to the positioning mechanism (200), and the cold plate (400) is provided with a number of second positioning holes (410) corresponding to the positioning mechanism (200).

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