Brazing positioning and fixing device

Abstract

The utility model discloses a brazing positioning and fixing device which comprises a high-frequency heating inductor and an operation platform used for placing a workpiece, and the operation platform is provided with a plurality of first quick clamps and a plurality of groups of fixed limiting plates and movable limiting plates. Gaps for placing workpieces are reserved between the two fixed limiting plates in the same group and between the two movable limiting plates in the same group; a driving mechanism capable of driving the two movable limiting plates in the same group to move is arranged on the operating platform; the operation platform is further provided with a second quick clamp capable of pressing and fixing the welding plate to the workpiece, and a heating frame on the high-frequency heating inductor covers the joint of the workpiece and the welding plate. The utility model aims to provide a brazing positioning and fixing device which can quickly position and fix the position of a workpiece through single-person operation so as to reduce the labor cost of welding and the operation difficulty of welding personnel, improve the safety of welding operation and enable the welding effect to be more stable.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to a brazing positioning and fixing device. Background Art

[0002] At present, when brazing workpieces are welded, high-frequency induction heating is used to achieve welding. Induction heating will heat the workpiece to a very high temperature, and there are great safety hazards in the process of manual welding. Welding requires two people to operate, one to operate the start and stop of high-frequency induction heating and control the large workpiece, and one to press and control the small workpiece. The welding process requires two people to cooperate with each other, which is difficult to operate. In addition, the heating area is different each time during manual operation, resulting in unstable welding effect of the workpiece. Utility Model Content

[0003] The purpose of the utility model is to provide a brazing positioning and fixing device, which can quickly locate and fix the position of a workpiece through single-person operation, so as to reduce the welding labor cost and the operation difficulty of the welder, improve the safety of the welding operation, and make the welding effect more stable.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a brazing positioning and fixing device, comprising a high-frequency heating sensor and an operating platform for placing a workpiece, the operating platform is provided with a plurality of first quick clamps, and a plurality of groups of fixed limit plates and dynamic limit plates, and a gap for placing the workpiece is reserved between two of the fixed limit plates in the same group and between two of the dynamic limit plates in the same group;

[0005] The operating platform is provided with a driving mechanism capable of driving two movable limit plates in the same group to move toward or away from each other;

[0006] The first quick clamp can press the workpiece down and fix it on the operating platform. The operating platform is also provided with a second quick clamp that can press the welding plate down and fix it on the workpiece. The heating frame cover on the high-frequency heating inductor is arranged at the connection between the workpiece and the welding plate.

[0007] In a preferred embodiment of the utility model, the driving mechanism includes an electric cylinder and two connecting rods respectively hinged to the telescopic ends of the electric cylinder, the other ends of the two connecting rods are respectively hinged to the sliders, the two sliders are both slidably connected to the operating platform through guide rails, and the two dynamic limit plates in the same group are respectively arranged on the sliders.

[0008] In a preferred embodiment of the utility model, a ceramic column is arranged on one end of the second quick clamp which abuts against the welding plate.

[0009] In a preferred embodiment of the utility model, a rubber column is threadedly connected to one end of the first quick clamp that abuts against the workpiece.

[0010] In a preferred embodiment of the utility model, the operating platform is provided with a plurality of cushion blocks of equal height arranged at the bottom of the workpiece.

[0011] In a preferred embodiment of the present invention, the heating frame is hollow-shaped.

[0012] The beneficial effects of the utility model are:

[0013] (1) This device can be operated by a single person. The electric cylinder drives the two moving limit plates of the same group to move toward each other, clamping the workpiece between the two moving limit plates to complete the initial positioning of the workpiece. It has good safety and does not require the cooperation of multiple people. Then, the workpiece is fixed on the operating platform by operating the first quick clamp, and the workpiece and the welding plate are fixed together by pressing down through the second quick clamp. The operation is simple and fast, and the heating area on the workpiece can be accurately controlled to ensure the welding effect. Finally, turn on the high-frequency heating sensor to make the heating frame heat the workpiece and the welding plate at the same time. When the workpiece and the welding plate are heated to a certain temperature, the welding agent and other materials will firmly weld the workpiece and the welding plate together to complete the welding operation of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of a brazing positioning and fixing device in a preferred embodiment of the utility model;

[0016] Figure 2 In the preferred embodiment of the utility model Figure 1 A schematic diagram of the local enlarged structure at B;

[0017] Figure 3 It is a structural schematic diagram of a driving mechanism and a set of dynamic limit plates in a preferred embodiment of the utility model when they are combined and connected;

[0018] Among them, 1. high-frequency heating sensor; 101. heating frame; 2. operating platform; 3. first quick clamp; 301. rubber column; 4. fixed limit plate; 5. dynamic limit plate; 6. workpiece; 7. welding plate; 8. second quick clamp; 801. ceramic column; 9. electric cylinder; 10. connecting rod; 11. slider; 12. guide rail; 13. equal height pads. DETAILED DESCRIPTION

[0019] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0020] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indication is only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Unless otherwise clearly specified and defined, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0021] like Figure 1-Figure 3 As shown, a brazing positioning and fixing device comprises a high-frequency heating sensor 1 and an operating platform 2 for placing a workpiece 6, on which a plurality of first quick clamps 3 and a plurality of groups of fixed limit plates 4 and movable limit plates 5 are arranged, and a gap for placing the workpiece 6 is reserved between two fixed limit plates 4 in the same group and between two movable limit plates 5 in the same group;

[0022] The operating platform 2 is provided with a driving mechanism which can drive two movable limit plates 5 in the same group to move toward or away from each other;

[0023] The first quick clamp 3 can press the workpiece 6 down and fix it on the operating platform 2. The operating platform 2 is also provided with a second quick clamp 8 that can press the welding plate 7 down and fix it on the workpiece 6. The heating frame 101 on the high-frequency heating inductor 1 is covered at the connection between the workpiece 6 and the welding plate 7.

[0024] Specifically, the first quick clamp 3 and the second quick clamp 8 used in the technical solution are both common quick clamps in the prior art, such as the horizontal quick clamp model GH-201B, the push-pull type heavy duty clamp model GH-301A, etc. It has a relatively simple structure, low cost and convenient use. The workpiece 6 is placed in the gap between the two fixed limit plates 4 of the same group and the gap between the two moving limit plates 5 of the same group on the operating platform 2 by a single person. The number of fixed limit plates 4 in each group of fixed limit plates 4 is two, and the number of moving limit plates 5 in each group of moving limit plates 5 is two. Sufficient gaps are reserved between the fixed limit plates 4 to limit the approximate range of the workpiece 6. Then, the two moving limit plates 5 of the same group are driven by the driving mechanism to move toward each other, so that the workpiece 6 is clamped between the two moving limit plates 5, and the initial positioning of the workpiece 6 is completed. Then, the workpiece 6 is fixed on the operating platform 2 by operating the first quick clamp 3. Then, the welding plate 7 to be welded with the workpiece 6 is placed on the workpiece 6, and welding materials such as welding agent are placed between the workpiece 6 and the welding plate 7. The workpiece 6 and the welding plate 7 are fixed together by pressing down through the second quick clamp 8, and finally the high-frequency heating sensor 1 is turned on, so that the heating frame 101 heats the workpiece 6 and the welding plate 7 at the same time. When the workpiece 6 and the welding plate 7 are heated to a certain temperature, the welding agent and other materials will firmly weld the workpiece 6 and the welding plate 7 together, completing the welding operation of the workpiece 6. The device can be operated by a single person, with low operating difficulty and high safety. And the difference in the heating area can be reduced by positioning and fixing the workpiece 6, thereby improving the welding effect of the workpiece 6.

[0025] Further, such as Figure 3 As shown, the driving mechanism includes an electric cylinder 9 and two connecting rods 10 respectively hinged to the telescopic ends of the electric cylinder 9, the other ends of the two connecting rods 10 are respectively hinged to the slider 11, the two sliders 11 are slidably connected to the operating platform 2 through the guide rail 12, and the two movable limit plates 5 of the same group are respectively arranged on the slider 11. The slider 11 and the guide rail 12 are combined to form a linear guide. The two movable limit plates 5 on each group are driven by the electric cylinder 9, and can be synchronously moved toward or away from each other, so that the positioning of the workpiece 6 can be completed quickly, the difference in the heating area during each welding is reduced, and the welding quality of the workpiece 6 is improved.

[0026] Further, such as Figure 1 As shown, a ceramic column 801 is provided on one end of the second quick clamp 8 that abuts against the welding plate 7. The high-frequency heating inductor 1 is a device in the prior art that uses a high-frequency electromagnetic field to act on a conductive material to heat the workpiece 6 through electromagnetic induction and Joule heating effect. The ceramic column 801 is located in the heating area, and the high-frequency heating inductor 1 cannot directly heat the ceramic column 801. It will only absorb a certain amount of heat through heat conduction when pressing on the welding plate 7. However, the ceramic material has good heat dissipation and can quickly dissipate heat to increase the service life of the second quick clamp 8.

[0027] In this embodiment, if Figure 1 As shown, a rubber column 301 is threadedly connected to one end of the first quick clamp 3 that abuts against the workpiece 6. The rubber column 301 can increase the friction between the first quick clamp 3 and the workpiece 6 to prevent the workpiece 6 from slipping. At the same time, rubber has a certain deformation ability and will not easily scratch the surface of the workpiece 6.

[0028] Further, such as Figure 1 , Figure 2 As shown, the operating platform 2 is provided with a plurality of equal-height pads 13 arranged at the bottom of the workpiece 6. When arranged under the workpiece 6, it can ensure that the various parts of the workpiece 6 are on the same horizontal plane, thereby increasing the stability of the workpiece 6 on the operating platform 2. The heating frame 101 is hollow-shaped, and the hollow-shaped heating frame 101 can make air flow between the workpiece 6 and the operating platform 2, thereby facilitating the heat dissipation of the workpiece 6.

[0029] Working principle: The workpiece 6 is placed in the gap between the two fixed limit plates 4 and the two moving limit plates 5 of the same group on the operating platform 2 by a single person, and then the two moving limit plates 5 of the same group are driven to move toward each other by the electric cylinder 9, so that the workpiece 6 is clamped between the two moving limit plates 5 to complete the initial positioning of the workpiece 6. Then, the workpiece 6 is fixed on the operating platform 2 by operating the first quick clamp 3, and the workpiece 6 and the welding plate 7 are fixed together by pressing down through the second quick clamp 8. Finally, the high-frequency heating sensor 1 is turned on, so that the heating frame 101 heats the workpiece 6 and the welding plate 7 at the same time. When the workpiece 6 and the welding plate 7 are heated to a certain temperature, the welding agent and other materials will firmly weld the workpiece 6 and the welding plate 7 together to complete the welding operation of the workpiece 6.

[0030] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A brazing positioning and fixing device, comprising a high-frequency heating sensor (1) and an operating platform (2) for placing a workpiece (6), characterized in that: The operating platform (2) is provided with a plurality of first quick clamps (3), and a plurality of groups of fixed limit plates (4) and movable limit plates (5), and a gap for placing the workpiece (6) is reserved between two of the fixed limit plates (4) in the same group and between two of the movable limit plates (5) in the same group; The operating platform (2) is provided with a driving mechanism capable of driving two movable limit plates (5) in the same group to move towards or away from each other; The first quick clamp (3) can press the workpiece (6) down and fix it on the operating platform (2); the operating platform (2) is also provided with a second quick clamp (8) that can press the welding plate (7) down and fix it on the workpiece (6); the heating frame (101) on the high-frequency heating inductor (1) is provided at the connection between the workpiece (6) and the welding plate (7).

2. The brazing positioning and fixing device according to claim 1, characterized in that: The driving mechanism comprises an electric cylinder (9) and two connecting rods (10) respectively hinged to the telescopic ends of the electric cylinder (9); the other ends of the two connecting rods (10) are respectively hinged to a slider (11); the two sliders (11) are both slidably connected to the operating platform (2) via a guide rail (12); and the two movable limit plates (5) of the same group are respectively arranged on the sliders (11).

3. The brazing positioning and fixing device according to claim 2, characterized in that: A ceramic column (801) is provided on one end of the second quick clamp (8) that abuts against the welding plate (7).

4. The brazing positioning and fixing device according to claim 3, characterized in that: One end of the first quick clamp (3) that abuts against the workpiece (6) is threadedly connected to a rubber column (301).

5. The brazing positioning and fixing device according to claim 4, characterized in that: The operating platform (2) is provided with a plurality of cushion blocks (13) of equal height which are arranged on the bottom of the workpiece (6).

6. The brazing positioning and fixing device according to claim 5, characterized in that: The heating frame (101) is hollow-shaped.

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