Vacuum cup body welding positioning device

Abstract

The utility model discloses a welding and positioning device for a cup body of a vacuum cup, which can realize convenient and accurate concentric positioning and is convenient for welding. The top, the positioning ring and the base are concentrically and sequentially arranged from top to bottom; wherein the top head is rotationally connected to the lifting equipment through a bearing and can move up and down; the base is fixedly connected to an equipment rotating shaft and can rotate along with the rotating shaft; the positioning ring is of an annular structure with the through middle and can synchronously rotate along with the vacuum cup body and the base, and an inner ring, matched with the outer diameter of the outer wall of the vacuum cup body, of the positioning ring can elastically move up and down. A welding seam is reserved between the lower end of the positioning ring and the upper end of the base, and the welding portion of the vacuum cup body is exposed out of the welding seam.

Description

Technical Field

[0001] This utility model belongs to the field of thermos cup processing equipment, and in particular relates to a thermos cup body welding positioning device. Background Technology

[0002] A thermos cup generally consists of an inner liner, an outer shell, a bottom of the inner liner, and a bottom of the outer shell. The upper ends of the inner liner and the outer shell, as well as the lower ends of the inner liner and the outer shell, need to be welded to the bottom of the inner liner and the outer shell, respectively. The prerequisite for welding is that the two workpieces to be welded need to be concentrically aligned. This requires the design of a welding positioning device to achieve concentric positioning conveniently and accurately, thus facilitating welding. Summary of the Invention

[0003] The purpose of this invention is to provide a welding positioning device for a thermos cup body, which can achieve convenient and accurate concentric positioning, facilitating welding.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A welding and positioning device for a thermos cup body comprises a top head, a positioning ring, and a base arranged concentrically from top to bottom. The top head is rotatably connected to a lifting device via bearings and can move up and down. The base is fixedly connected to the rotating shaft of the device and can rotate with the shaft. The positioning ring is a ring-shaped structure with a through center and can rotate synchronously with the thermos cup body and the base. Its inner ring, which is adapted to the outer diameter of the outer wall of the thermos cup body, can move up and down elastically. A welding seam is left between the lower end of the positioning ring and the upper end of the base, and the welding part of the thermos cup body is exposed through the welding seam.

[0006] Preferably, the inner wall of the inner ring is an inverted cone shape, and the inner diameter gradually decreases from top to bottom.

[0007] Preferably, the positioning ring also includes an outer ring and a fixed seat that are fixedly connected together, the inner ring is movable between the outer ring and the fixed seat at the upper and lower limits, and the outer ring is located outside the inner ring. An elastic element is provided between the inner ring and the outer ring to allow the inner ring to move up and down elastically.

[0008] Preferably, there is a cavity between the inner ring and the outer ring, and at least three spring seats are evenly arranged circumferentially on the outer ring within the cavity, with the elastic element being a spring and sleeved on the spring seats.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: By adopting the above technical solution, the inner liner and outer shell of the thermos cup can be concentrically positioned by setting a positioning ring, which facilitates welding; and the positioning ring is set to be able to move up and down elastically and rotate synchronously with the thermos cup body. This setting ensures that the protruding part of the outer shell of the thermos cup body can first contact the positioning ring to achieve concentric positioning before moving down to combine with the inner liner, thus avoiding the outer shell being skewed and affecting the welding quality.

[0010] Further beneficial effects are: setting the inner wall of the inner ring to an inverted cone shape serves two purposes: firstly, the protruding part of the outer shell has a guiding function when it contacts the inner wall of the inner ring; secondly, it has a wider range of applications.

[0011] A further beneficial effect is that the elastic element is a spring and it is fitted onto a spring seat, and at least three spring seats are evenly arranged around the circumference, so that the elastic force is more uniform. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0013] To make the technical solution of this utility model clearer, the following description is in conjunction with the appendix. Figure 1 This specification provides a detailed description of the present invention. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the scope of protection of the present invention.

[0014] Example: See Figure 1 In the diagram, 1-top, 2-positioning ring, 21-inner ring, 22-outer ring, 23-fixed seat, 24-elastic element, 25-spring seat, 3-base, 4-bearing, 8-thermos cup body, 81-inner liner, 82-outer shell, 9-welding torch.

[0015] This utility model relates to a welding and positioning device for a thermos cup body, comprising a top head 1, a positioning ring 2, and a base 3 arranged concentrically from top to bottom; wherein:

[0016] The top head 1 is rotatably connected to the lifting equipment via bearing 4 and can move up and down;

[0017] Base 3 is fixedly connected to the rotating shaft of the equipment and can rotate with the rotating shaft;

[0018] The positioning ring 2 is a ring structure with a through center, and it can rotate synchronously with the thermos cup body 8 and the base 3. Its inner ring 21, which is adapted to the outer diameter of the outer wall of the thermos cup body 8, can move up and down elastically.

[0019] A welding seam is left between the lower end of the positioning ring 2 and the upper end of the base 3, and the welding part of the thermos cup body 8 is exposed in the welding seam.

[0020] Preferably, the inner wall of the inner ring 21 is an inverted cone shape, and the inner diameter gradually decreases from top to bottom.

[0021] Preferably, the positioning ring 2 also includes an outer ring 22 and a fixed seat 23 that are fixedly connected together. The inner ring 21 is vertically limited and movable between the outer ring 22 and the fixed seat 23. The outer ring 22 is located outside the inner ring 21. An elastic element 24 is provided between the inner ring 21 and the outer ring 22 to allow the inner ring 21 to move up and down elastically.

[0022] Preferably, the elastic element 24 is a spring, and there is a cavity between the inner ring 21 and the outer ring 22. At least three spring seats 25 are evenly arranged circumferentially on the outer ring 22 in the cavity, and the elastic element 24 is sleeved on the spring seats 25.

[0023] The following describes the usage of the welding positioning device of this utility model, using the welding of the inner liner 81 and the outer shell 82 of the thermos cup body 8 as an example.

[0024] In some embodiments, the opening of the outer casing 82 is a vertical section with the same outer diameter, and the inner diameter of the lowest end of the inner ring 21 of the positioning ring 2 matches the outer diameter of the vertical section.

[0025] 1. Place the inner liner 81 with its opening facing down through the positioning ring 2 and onto the base 3. The top surface of the base 3 is provided with a positioning step that matches the opening of the inner liner 82, which can guide the inner liner 81 to be concentrically positioned on the base 3.

[0026] 2. With the opening of the outer shell 82 facing down, the vertical section can pass directly through the inner ring 21, guiding it to achieve concentric positioning with the inner liner 81;

[0027] 3. The top head 1 moves down and presses against the bottom of the outer shell 82, so that the opening of the outer shell 82 and the inner liner 81 are in close contact and are limited between the top head 1 and the base 3;

[0028] 4. The equipment shaft drives the base 3 to rotate, and drives the inner liner 81 and the outer shell 82 to rotate together. The welding gun 9 located at the welding seam of the base 3 and the positioning ring 2 welds the openings of the inner liner 81 and the outer shell 82.

[0029] In other embodiments, such as Figure 1 As shown, the outer shell 82 gradually increases in size from the bottom to the opening and then tapers inward, so that the outer diameter of the outer shell 82 is at its maximum below the upper opening. The inner diameter of the lowest point of the inner ring 21 of the positioning ring 2 is slightly larger than the outer diameter of the upper opening of the outer shell 82, so that the upper opening of the outer shell 82 can pass through the positioning ring 2, facilitating its connection and welding with the opening of the inner liner 81.

[0030] 1. Place the inner liner 81 with its opening facing down through the positioning ring 2 and onto the base 3. The top surface of the base 3 is provided with a positioning step that matches the opening of the inner liner 82, which can guide the inner liner 81 to be concentrically positioned on the base 3.

[0031] 2. With the opening of the outer shell 82 facing down, during the process of passing through the positioning ring 2, the outer diameter of the outer shell 82 at its maximum can ensure that it first contacts the inner wall of the inner ring 21 to complete the concentric positioning.

[0032] 3. The top head 1 moves down and abuts against the bottom of the outer shell 82, and continues to move downward, forcing the outer shell 82 to overcome the elastic element 24 and move downward until the lower end opening of the outer shell 82 is engaged with the opening of the inner liner 81, thus completing the concentric positioning.

[0033] 4. The equipment shaft drives the base 3 to rotate, and drives the inner liner 81 and the outer shell 82 to rotate together. The outer shell 82 drives the positioning ring 2 to rotate together. The welding gun 9 located at the welding seam of the base 3 and the positioning ring 2 welds the opening of the inner liner 81 and the outer shell 82.

Claims

1. A welding and positioning device for a thermos cup body, comprising a top head (1), a positioning ring (2), and a base (3) arranged concentrically from top to bottom; characterized in that: The top head (1) is rotatably connected to the lifting equipment via bearing (4) and can move up and down; The base (3) is fixedly connected to the rotating shaft of the equipment and can rotate with the rotating shaft; The positioning ring (2) is a ring structure with a through center, and can rotate synchronously with the thermos cup body (8) and the base (3). Its inner ring (21) which is adapted to the outer diameter of the outer wall of the thermos cup body (8) can move up and down elastically. A welding seam is left between the lower end of the positioning ring (2) and the upper end of the base (3), and the welding part of the thermos cup body (8) is exposed in the welding seam.

2. The thermos cup body welding positioning device according to claim 1, characterized in that: The inner wall of the inner ring (21) is an inverted cone shape, and the inner diameter gradually decreases from top to bottom.

3. A thermos cup body welding positioning device according to claim 1 or 2, characterized in that: The positioning ring (2) also includes an outer ring (22) and a fixed seat (23) that are fixedly connected together. The inner ring (21) is limited to move between the outer ring (22) and the fixed seat (23) and the outer ring (22) is located outside the inner ring (21). An elastic element (24) is provided between the inner ring (21) and the outer ring (22) to make the inner ring (21) move up and down elastically.

4. The thermos cup body welding positioning device according to claim 3, characterized in that: There is a cavity between the inner ring (21) and the outer ring (22). At least three spring seats (25) are evenly arranged around the outer ring (22) in the cavity. The elastic element (24) is a spring and is sleeved on the spring seat (25).

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