Special clamping jaw for brazing plug of metal vacuum insulated panel

Abstract

The utility model relates to the technical field of brazing plug grabbing mechanical arms, in particular to a special clamping jaw for a brazing plug of a metal vacuum insulated panel, which comprises a gravity rod and an insulated panel body, the outer side of the gravity rod is slidably connected with a base, the left side and the right side in the base are rotatably connected with clamping arms, and the inner sides of the clamping arms are in contact with a plug body. Damping layers are arranged below the inner sides of the clamping arms, fixing shafts are rotationally connected to the top ends below the outer sides of the clamping arms, rollers are fixedly connected to the outer sides of the fixing shafts, and rubber layers are arranged on the surfaces of the rollers. Through the design cooperation of the clamping arms and the base, when the device clamps the plug body, the plug body is used for pushing the gravity rod upwards to a proper position, the clamping arms are loosened, the clamping arms naturally fall to clamp the plug body under the action of gravity, when the plug body is placed, the base is fixed through a mechanical arm or manual work to move downwards, and the plug body is placed. And the structure is simple, the manufacturing cost of the equipment is reduced, and the maintenance frequency of the equipment is reduced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of brazing plug grasping manipulators, in particular to a special jaw for brazing plugs of metal vacuum insulation panels. Background Technique

[0002] The brazing plug of the metal vacuum insulation panel is an important part of the vacuum brazing process. Vacuum brazing is a welding method carried out in a vacuum state. Through heating and heat preservation, the filler metal melts within an appropriate temperature and time range, and then fully infiltrates, dissolves, diffuses, and welds with the solid metal under the action of capillary force, so as to achieve the welding purpose.

[0003] During the vacuum pumping process before brazing the metal vacuum insulation panel, it is necessary to ensure that the exhaust holes are unobstructed. Therefore, the plugs cannot be pre-installed in the exhaust holes. During brazing, the plugs need to be placed in the exhaust holes and pressed tightly to ensure firm welding. The equipment uses a manipulator to carry a special jaw to achieve this function. Generally, an electric jaw is used to clamp the plug, and the electric control system controls the jaw to grasp or release the workpiece.

[0004] During the vacuum pumping process of the metal vacuum insulation panel, heating is required. The electric jaw is in a vacuum and high-temperature environment. The equipment needs to insulate the electric jaw. The electric jaw itself also needs to be resistant to a certain high temperature and vacuum environment, and the power supply and control circuit also need to be sealed. All these will increase the manufacturing cost of the equipment and the maintenance frequency of the equipment.

[0005] To solve the above problems, a special jaw for brazing plugs of metal vacuum insulation panels is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background technique. The utility model provides a special jaw for brazing plugs of metal vacuum insulation panels, which can reduce the manufacturing cost of the equipment and the maintenance frequency at the same time.

[0007] To achieve the above object, the utility model adopts the following technical scheme: A special jaw for brazing plugs of metal vacuum insulation panels, including a gravity rod and an insulation plate body. A base is slidably connected to the outside of the gravity rod. Clamping arms are rotatably connected to the left and right sides inside the base. A plug body is in contact with the inner sides of the clamping arms. A damping layer is arranged below the inner sides of the clamping arms. A fixed shaft is rotatably connected to the top of the lower side of the outer sides of the clamping arms. A roller is fixedly connected to the outside of the fixed shaft. A rubber layer is arranged on the surface of the roller.

[0008] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, the bottom end of the gravity rod contacts the top of the plug body, the left and right sides of the top of the insulation panel body contact the surface of the rubber layer, and the middle of the insulation panel body contacts the surface of the plug body. Through the structural design of the base and the clamping arm, a gravity jaw is designed to clamp and place the plug body by gravity.

[0009] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, a rotating shaft is connected between the lower part inside the base and the top of the clamping arm, and the maximum angle for the rotating shaft to drive the clamping arm to rotate below the base is 140 degrees. This allows the clamping arm to rotate within a certain range at the bottom of the base when subjected to an external force, and the clamping and placement of the plug body can be achieved by gravity.

[0010] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, the clamping arm is in an angular shape, and the number of clamping arms is two groups, which are distributed on the left and right sides below the base. This allows the clamping arm to naturally fall and clamp the plug body under the action of gravity. When placing the plug body, a manipulator or manual operation is used to fix the base and move it downward until the clamping arm touches other workpieces. Since the clamping arm is in an angular shape, it will rotate outward instead of moving downward after it cannot move downward, thus releasing the clamped plug body.

[0011] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, a through hole is provided in the middle of the base, and the diameter of the through hole in the middle of the base matches the diameter of the cross-section at the lower part of the gravity rod. The longitudinal section shape of the gravity rod is T-shaped, and the gravity rod presses the plug body to continue to fall, achieving the clamping and placement of the plug body by gravity.

[0012] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, a strip-shaped groove is provided at the bottom end outside the clamping arm, and a fixed shaft is arranged in the middle of the inner side of the groove at the bottom end outside the clamping arm. The longitudinal section diameter of the roller matches the depth of the groove at the bottom end outside the clamping arm, allowing the roller to be arranged in the groove at the bottom end outside the clamping arm to reduce the friction between the bottom end of the clamping arm and the insulation panel body.

[0013] Preferably, as a special jaw for brazing plugs of a metal vacuum insulation panel of the present utility model, the length of the damping layer at the bottom end inside the clamping arm is the same as the front and back length of the clamping arm, and the longitudinal section shape of the damping layer is a semi-circular sheet, and the thickness of the damping layer is 2 mm. After the bottom end inside the clamping arm contacts the insulation panel body, the friction between the bottom end inside the clamping arm and the plug body can be increased, causing the roller at the bottom end outside the clamping arm to stop rolling, improving the stability of the base when feeding the plug body, and avoiding the situation where the clamping arm shakes during feeding, resulting in the clamping arm inside the plug body getting stuck and making it difficult to feed.

[0014] The utility model has the following beneficial effects:

[0015] The special jaw for brazing plug of the metal vacuum insulation panel designed by the utility model, through design cooperation, enables the device to push the gravity rod upward to a proper position when clamping the plug body, release the clamping arm, and the clamping arm naturally falls under the action of gravity to clamp the plug body. When placing the plug body, use a manipulator or manually move the fixed base downward until the clamping arm touches other workpieces. Because the clamping arm is angled, it will turn into a lateral rotational movement after being unable to move downward, releasing the clamped plug body, and the gravity rod presses the plug body to continue falling. The clamping and placing of the plug body are realized by using gravity. At the same time, a rotatable roller is arranged at the outer bottom end of the clamping arm. When the clamping arm touches the top of the insulation panel body and places the plug body, the friction between the bottom end of the clamping arm and the insulation panel body can be reduced, making the sliding of the clamping arm on the top of the insulation panel body smoother. The structure is simple, the manufacturing cost of the equipment is reduced, and the equipment maintenance frequency is lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model and do not constitute a limitation to the utility model. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a schematic diagram of the blanking structure of the plug body of the utility model;

[0019] Figure 3 is a three-dimensional structure schematic diagram of the clamping arm longitudinally flipped 180 degrees of the utility model;

[0020] Figure 4 is a schematic diagram of the overall structure of the roller of the utility model.

[0021] Legend:

[0022] 1. Gravity rod; 2. Base; 3. Clamping arm; 4. Plug body; 5. Rubber layer; 6. Insulation panel body; 7. Fixed shaft; 8. Damping layer; 9. Roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0024] Example 1

[0025] As Figures 1 to 4 shown;

[0026] A special jaw for brazing plugs of a metal vacuum insulation panel, comprising a gravity rod 1 and an insulation panel body 6.

[0027] In this implementation: As disclosed in the background art above, "During the vacuum pumping process of the metal vacuum insulation panel, heating is required. The electric jaw is in a vacuum and high-temperature environment. The equipment needs to insulate the electric jaw, and the electric jaw itself also needs to be resistant to a certain high temperature and vacuum environment. The power supply and control circuit also need to be sealed. All these will increase the manufacturing cost of the equipment and the equipment maintenance frequency." In combination, this problem is obviously an existing and difficult-to-solve problem. In view of this, to solve this technical problem, the clamping arm 3 and the roller 9 are added to this application document;

[0028] Furthermore:

[0029] As Figures 1 to 4 shown:

[0030] Combined with the above content: A special jaw for brazing plugs of a metal vacuum insulation panel, comprising a gravity rod 1 and an insulation panel body 6. The outside of the gravity rod 1 penetrates through the middle of the inside of the base 2 and slides. The left and right sides inside the base 2 are connected to the clamping arms 3 through a rotating shaft. The inside of the clamping arms 3 clamps the plug body 4. A damping layer 8 is arranged below the inside of the clamping arms 3. A fixed shaft 7 is arranged at the top of the lower side outside the clamping arms 3. The outside of the fixed shaft 7 penetrates through the inside of the roller 9 and is welded and fixed. A rubber layer 5 is arranged on the surface of the roller 9. The bottom end of the gravity rod 1 contacts the top of the plug body 4. The left and right sides at the top of the insulation panel body 6 contact the surface of the rubber layer 5. The middle of the insulation panel body 6 contacts the surface of the plug body 4.

[0031] In this embodiment: Through the structural design of the base 2 and the clamping arms 3, a gravity jaw is designed to realize the clamping and placement of the plug body 4 by gravity.

[0032] In an alternative embodiment: The lower part inside the base 2 and the top of the clamping arm 3 are connected by a rotating shaft, and the maximum angle for the rotating shaft to drive the clamping arm 3 to rotate below the base 2 is 140 degrees.

[0033] In this embodiment: The clamping arm 3 can rotate within a certain range at the bottom of the base 2 under the action of an external force, and the clamping and placement of the plug body 4 can be realized by gravity.

[0034] In an alternative embodiment: The clamping arm 3 is in an angular shape, the number of the clamping arms 3 is two groups, and the clamping arms 3 are distributed on the left and right sides below the base 2.

[0035] In this embodiment: The clamping arm 3 can fall naturally under the action of gravity to clamp the plug body 4. When placing the plug body 4, the manipulator or manual fixing base 2 is moved downward until the clamping arm 3 touches other workpieces. Since the clamping arm 3 is angled, after it cannot move downward, it will turn into a rotational movement outward to release the clamped plug body 4.

[0036] In an alternative embodiment: A through hole is provided in the middle of the base 2, and the diameter of the through hole in the middle of the base 2 matches the diameter of the lower cross-section of the gravity rod 1. The longitudinal cross-sectional shape of the gravity rod 1 is T-shaped.

[0037] In this embodiment: The gravity rod 1 presses the plug body 4 to continue falling, and the clamping and placement of the plug body 4 are realized by using gravity.

[0038] In an alternative embodiment: A strip-shaped groove is provided at the outer bottom end of the clamping arm 3, and the fixed shaft 7 is arranged in the middle of the inner side of the groove at the outer bottom end of the clamping arm 3. The longitudinal cross-sectional diameter of the roller 9 matches the depth of the groove at the outer bottom end of the clamping arm 3.

[0039] In this embodiment: The roller 9 is arranged in the groove at the outer bottom end of the clamping arm 3 to reduce the friction between the bottom end of the clamping arm 3 and the heat insulation plate body 6.

[0040] In an alternative embodiment: The length of the damping layer 8 at the inner bottom end of the clamping arm 3 is the same as the front and back length of the clamping arm 3. The longitudinal cross-sectional shape of the damping layer 8 is a semi-circular sheet, and the thickness of the damping layer 8 is two millimeters.

[0041] In this embodiment: After the inner bottom end of the clamping arm 3 contacts the heat insulation plate body 6, the friction between the inner bottom end of the clamping arm 3 and the plug body 4 can be increased, so that the roller 9 at the outer bottom end of the clamping arm 3 stops rolling, improving the stability of the base 2 when feeding the plug body 4, and avoiding the situation that the clamping arm 3 shakes during feeding, resulting in the clamping arm 3 in the plug body 4 getting stuck and making it difficult to feed.

[0042] Working principle and usage process of the utility model: When clamping the plug body 4, manually open the clamping arm 3. The clamping arm 3 rotates at the bottom of the base 2. Use the plug body 4 to push the gravity rod 1 upward to a proper position, and then release the clamping arm 3. The clamping arm 3 naturally falls under the action of gravity to clamp the plug body 4. Since the weight of the clamping arm 3 is much greater than that of the plug body 4 and the gravity rod 1, the plug body 4 will not fall off after being clamped. When placing the plug body 4, use a manipulator or manually fix the base 2 to move downward until the clamping arm 3 touches the top edge of the heat insulation plate body 6. Because the clamping arm 3 is in an angular shape, after it cannot move downward, it will turn into an outward rotational movement, releasing the clamped workpiece. The gravity rod 1 presses the workpiece to continue falling. At this time, the roller 9 at the outer lower end of the clamping arm 3 drives the rubber layer 5 to roll along the restriction of the fixed shaft 7 on the left and right sides of the heat insulation plate body 6 until the damping layer 8 at the inner lower end of the clamping arm 3 touches the heat insulation plate body 6 and then stops. The clamping arm 3 stops rotating and completely releases the plug body 4. Until the plug body 4 is inside the heat insulation plate body 6, the manipulator or manually lift the base 2 upward and transfer it above the position of the plug body 4 to be clamped, and cycle in turn.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A clamping jaw for brazing a metal vacuum insulation panel plug, comprising a gravity rod (1) and an insulation panel body (6), characterized in that: The outer side of the gravity rod (1) is slidably connected to a base (2), the inner side of the base (2) is rotatably connected to clamp arms (3) on both sides, the inner side of the clamp arms (3) contacts a plug body (4), a damping layer (8) is provided at the lower inner side of the clamp arms (3), the upper end of the lower outer side of the clamp arms (3) is rotatably connected to a fixed shaft (7), the outer side of the fixed shaft (7) is fixedly connected to a roller (9), and a rubber layer (5) is provided on the surface of the roller (9).

2. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: The bottom end of the gravity rod (1) contacts the top of the plug body (4), the left and right sides of the top of the insulation board body (6) contact the surface of the rubber layer (5), and the middle of the insulation board body (6) contacts the surface of the plug body (4).

3. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: The lower part of the base (2) is connected to the top of the clamp arm (3) by a rotating shaft, and the maximum angle of rotation of the clamp arm (3) driven by the rotating shaft below the base (2) is one hundred and forty degrees.

4. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: The clamping arms (3) are in an angled shape, there are two groups of the clamping arms (3), and the clamping arms (3) are distributed on the left and right sides below the base (2).

5. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: A through hole is provided in the middle of the base (2), and the diameter of the through hole in the middle of the base (2) matches the diameter of the cross section below the gravity rod (1), and the longitudinal section of the gravity rod (1) is T-shaped.

6. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: The outer bottom end of the clamp arm (3) is provided with a strip-shaped groove, and the fixed shaft (7) is arranged in the middle of the inner side of the groove at the outer bottom end of the clamp arm (3), and the longitudinal section diameter of the roller (9) matches the depth of the groove at the outer bottom end of the clamp arm (3).

7. The special clamp for brazing plug of metal vacuum insulation panel according to claim 1, characterized in that: The length of the damping layer (8) at the inner bottom end of the clamp arm (3) is the same as the front-to-rear length of the clamp arm (3), and the longitudinal section of the damping layer (8) is in the shape of a semicircular sheet. The thickness of the damping layer (8) is two millimeters.

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