Electromagnetic welding fixture

Abstract

The utility model provides an electromagnetic welding fixture. The electromagnetic welding fixture comprises a fixed clamping part, a movable clamping part and a driving mechanism, wherein the fixed clamping part and the movable clamping part are correspondingly provided with arc-shaped clamping faces respectively, the corresponding ends of the fixed clamping part and the movable clamping part are hinged, and the driving mechanism is used for driving the movable clamping part to rotate relative to the fixed clamping part so that the movable clamping part and the fixed clamping part can be matched to clamp or loosen a pipe fitting. The electromagnetic welding fixture provided by the utility model is simpler to operate, more time-saving and labor-saving, and higher in efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of water supply and drainage construction equipment, and in particular to an electromagnetic welding fixture. Background Art

[0002] Electromagnetic pipe welding equipment uses the principle of electromagnetic induction to convert electrical energy into heat. It rectifies 220V, 50 / 60Hz AC current into DC, then converts the DC into high-frequency, high-voltage electricity with a frequency of 20 to 40kHz. This rapidly changing, high-frequency, high-voltage current flowing through the coil generates a rapidly changing alternating magnetic field. When the magnetic lines of force within this field pass through the metal layer at the pipe fitting, they generate numerous small eddy currents within the metal layer, causing it to heat up, thereby heating the pipe and achieving a heat-melt connection.

[0003] Existing electromagnetic welding equipment usually uses an electromagnetic welding fixture, which usually consists of two arc-shaped clamps, with corresponding ends of the two arc-shaped clamps hingedly connected, and the other ends are respectively provided with a snap structure. When in use, the two arc-shaped clamps are manually separated, and then clamped to the part of the pipe to be welded, and then the two arc-shaped clamps are clamped by the snap structure, and finally power is turned on to achieve hot melt welding. However, the two arc-shaped clamps need to be manually separated and clamped, and the snap structure needs to be manually operated to achieve clamping. The entire clamping process is relatively complicated, time-consuming and labor-intensive, and has low work efficiency. Therefore, there is an urgent need for an electromagnetic welding fixture that is simple to operate, saves time and effort, and is highly efficient to solve the above problems.

[0004] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0005] In view of the above problems, an electromagnetic welding fixture is provided, which is simpler to operate, saves time and effort, and is more efficient.

[0006] Specifically, the present application provides an electromagnetic welding fixture, comprising a fixed clamping part and a movable clamping part, each of which is provided with an arc-shaped clamping surface and hinged at the corresponding end, and a driving mechanism for driving the movable clamping part to rotate relative to the fixed clamping part so that the movable clamping part cooperates with the fixed clamping part to clamp or loosen the pipe.

[0007] Optionally, the driving mechanism includes a cylinder body and an output shaft coaxially arranged with the cylinder body and moving along the axis of the cylinder body; the end of the output shaft is hinged to the outer wall of the movable clamping part, and the cylinder body is correspondingly hinged to the corresponding position of the fixed clamping part.

[0008] Optionally, the driving mechanism is a linear motor, a cylinder or a hydraulic cylinder.

[0009] Optionally, the electromagnetic welding fixture further includes a buckle structure provided at the ends of the movable clamping part and the fixed clamping part for limiting the movable clamping part.

[0010] Optionally, the snap structure includes a plug post provided at the end of the movable clamping part and a first socket provided at the end of the fixed clamping part and corresponding to the plug post; a slot is provided at the outer wall of the plug post; a second socket is provided at the outer wall of the end of the fixed clamping part, which is connected to the first socket and corresponds to the slot; a movable column is provided in the second socket, and the movable column includes a hand-held part extending out of the second socket, a connecting column and a clamping column; the diameter of the clamping column is larger than the diameter of the connecting column to form a step surface; a spring is sleeved on the outer wall of the connecting column, and the two ends of the spring respectively abut against the step surface and the end wall of the second socket.

[0011] Optionally, a guiding inclined surface is provided at the end of the plug post, and a corresponding arc surface is provided at the end of the clamping post.

[0012] Optionally, the electromagnetic welding fixture further includes a fan disposed in the end of the fixed clamping portion for heat dissipation.

[0013] The electromagnetic welding fixture of the present application realizes the clamping and separation of the movable clamping part and the fixed clamping part through a driving mechanism, thereby realizing the clamping and release of the pipe fitting. Compared with the manual method, the electromagnetic welding fixture of the present application is simpler to operate, saves time and labor, and is more efficient.

[0014] Based on the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the electromagnetic welding fixture in the loosened state in an embodiment of the present application.

[0016] Figure 2 This is a schematic structural diagram of the clamping state of the electromagnetic welding fixture in the embodiment of the present application.

[0017] Figure 3 This is a partial schematic structural diagram of the electromagnetic welding fixture in an embodiment of the present application.

[0018] In the above figures, 110 is a fixed clamping part, 111 is a fixed shell, 112 is a coil, 120 is a movable clamping part, 121 is a movable shell, 130 is a driving mechanism, 131 is a cylinder body, 132 is an output shaft, 141 is a plug column, 142 is a first plug hole, 143 is a slot, 144 is a second plug hole, 145 is a hand-held part, 146 is a connecting column, 147 is a clamping column, 148 is a spring, 149 is a guide slope, and 150 is a fan. DETAILED DESCRIPTION

[0019] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on this application. The terms "first", "second", etc. mentioned in this application are used to distinguish the objects described and do not have any order or technical meaning. The terms "connection" and "connection" mentioned in this application, unless otherwise specified, include direct and indirect connections (connections).

[0020] Figure 1 This is a schematic structural diagram of the electromagnetic welding fixture in the loose state in the embodiment of the present application, as shown in FIG. Figure 1 As shown, and reference Figure 2 and Figure 3 An embodiment of the present application provides an electromagnetic welding fixture, comprising a fixed clamping portion 110 and a movable clamping portion 120, each of which is respectively provided with an arc-shaped clamping surface and hinged at the corresponding end, and a driving mechanism 130 for driving the movable clamping portion 120 to rotate relative to the fixed clamping portion 110 so that the movable clamping portion 120 cooperates with the fixed clamping portion 110 to clamp or loosen the pipe fitting.

[0021] In the electromagnetic welding fixture of the embodiment of the present application, when welding a pipe fitting, the drive mechanism 130 drives the movable clamping portion 120 to rotate away from the fixed clamping portion 110 to separate the movable clamping portion 120 and the fixed clamping portion 110. The fixture is then placed on the pipe fitting at the location to be welded. The drive mechanism 130 then drives the movable clamping portion 120 to rotate toward the fixed clamping portion 110 so that the movable clamping portion 120 and the fixed clamping portion 110 cooperate to clamp the pipe fitting. Finally, the coil 112 in the electromagnetic welding fixture is energized to achieve heat-melt welding of the pipe fitting. After a set duration, the drive mechanism 130 again drives the movable clamping portion 120 to rotate away from the fixed clamping portion 110 to separate the movable clamping portion 120 and the fixed clamping portion 110, thereby loosening the pipe fitting and completing the welding process.

[0022] The electromagnetic welding fixture of the embodiment of the present application realizes the clamping and separation of the movable clamping part 120 and the fixed clamping part 110 through the driving mechanism 130, thereby realizing the clamping and loosening of the pipe fitting. Compared with the manual method, the electromagnetic welding fixture of the present application is simpler to operate, saves time and labor, and is more efficient.

[0023] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the movable clamping portion 120 includes a movable housing 121 and a coil 112 correspondingly disposed within the movable housing 121, and the fixed clamping portion 110 includes a fixed housing 111 and a coil 112 correspondingly disposed within the fixed housing 111. When alternating current is passed through the coil 112, a varying magnetic field is generated, which in turn acts on the metal layer of the pipe, causing eddy currents to form in the metal layer, generating heat, thereby enabling heat-melting welding of the pipe.

[0024] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the drive mechanism 130 includes a cylinder 131 and an output shaft 132 coaxially arranged with the cylinder 131 and moving along the axis of the cylinder 131. The end of the output shaft 132 is hinged to the outer wall of the movable clamping part 120, and the cylinder 131 is correspondingly hinged to the corresponding position of the fixed clamping part 110.

[0025] In this embodiment of the present application, the output shaft 132 extends relative to the cylinder body 131, driving the movable clamping portion 120 toward the fixed clamping portion 110, thereby clamping the pipe. The output shaft 132 retracts relative to the cylinder body 131, driving the movable clamping portion 120 away from the fixed clamping portion 110, thereby loosening the pipe.

[0026] In some embodiments of the present application, the drive mechanism 130 is a linear motor, a pneumatic cylinder, or a hydraulic cylinder. A linear motor is a motor that can directly output linear motion and has advantages such as simple structure, fast response, high sensitivity, safety and reliability, long service life, and ease of adjustment and control. Pneumatic cylinders have advantages such as simple principle and structure, easy installation and maintenance. Hydraulic cylinders have advantages such as simple structure, reliable operation, and high torque output.

[0027] In some embodiments of the present application, Figures 1 to 3 As shown, the electromagnetic welding fixture further includes a buckle structure provided at the ends of the movable clamping portion 120 and the fixed clamping portion 110 for limiting the movable clamping portion 120 .

[0028] In the embodiment of the present application, due to the provision of a snap-fit structure, it is used in conjunction with the driving mechanism 130 to achieve the purpose of double clamping, thereby making the clamping effect better and the fixation of the pipe more secure.

[0029] In some embodiments of the present application, Figures 1 to 3 As shown, the snap-fit structure includes a pin 141 provided at the end of the movable clamping portion 120 and a first socket 142 provided at the end of the fixed clamping portion 110 and corresponding to the pin 141. A slot 143 is provided on the outer wall of the pin 141. A second socket 144 is provided on the outer wall of the end of the fixed clamping portion 110, which is connected to the first socket 142 and corresponds to the slot 143. A movable column is provided in the second socket 144, and the movable column includes a handheld portion 145 extending out of the second socket 144, a connecting column 146, and a clamping column 147. The diameter of the clamping column 147 is larger than the diameter of the connecting column 146 to form a stepped surface. A spring 148 is sleeved on the outer wall of the connecting column 146, and the two ends of the spring 148 respectively abut against the stepped surface and the end wall of the second socket 144.

[0030] In the embodiment of the present application, when the pin 141 is inserted into the first insertion hole 142, the pin 141 squeezes the end of the clamping column 147, causing the clamping column 147 to retract into the second insertion hole 144. When the pin 141 moves to the slot 143 and aligns with the second insertion hole 144, the clamping column 147 extends under the action of the spring 148 and snaps into the slot 143, thereby locking the movable clamping portion 120 and the fixed clamping portion 110. When it is necessary to separate the movable clamping portion 120 and the fixed clamping portion 110, the handle 145 is pulled outward, causing the clamping column 147 to withdraw from the slot 143, releasing the lock. At this time, the drive mechanism 130 can drive the movable clamping portion 120 and the fixed clamping portion 110 to separate. The clamping structure of the present application has a simple structure and an ingenious design, and can automatically lock and easily unlock.

[0031] In some embodiments of the present application, Figures 1 to 3 As shown, a guiding inclined surface 149 is provided at the end of the inserting column 141, and a corresponding arc surface is provided at the end of the clamping column 147.

[0032] In the embodiment of the present application, the provision of the guiding inclined surface 149 and the arc surface facilitates the insertion of the column 141 into the first insertion hole 142 and the engagement with the clamping column 147 , so that the clamping column 147 retracts into the second insertion hole 144 .

[0033] In some embodiments of the present application, Figure 1 and Figure 2 As shown, the electromagnetic welding fixture further includes a fan 150 disposed in the end of the fixed clamping portion 110 for heat dissipation.

[0034] In the embodiment of the present application, since the electromagnetic welding fixture will generate a large amount of heat at the coil 112 during hot melt welding, if the heat is not dissipated in time, the coil 112 and other components will easily be damaged by heat. Therefore, the fan 150 provided can achieve the purpose of good heat dissipation and cooling, thereby preventing the coil 112 and other components from being damaged by heat.

[0035] Although some preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0036] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of the inventive concept. Thus, if such changes and modifications fall within the scope of the claims of this application and their equivalents, this application is intended to include such changes and modifications.

Claims

1. An electromagnetic welding fixture, characterized in that: It includes a fixed clamping part and a movable clamping part, each of which is provided with an arc-shaped clamping surface and hinged at the corresponding end, and a driving mechanism for driving the movable clamping part to rotate relative to the fixed clamping part so that the movable clamping part cooperates with the fixed clamping part to clamp or loosen the pipe.

2. The electromagnetic welding fixture according to claim 1, characterized in that: The driving mechanism includes a cylinder body and an output shaft coaxially arranged with the cylinder body and moving along the axis of the cylinder body; the end of the output shaft is hinged to the outer wall of the movable clamping part, and the cylinder body is correspondingly hinged to the corresponding position of the fixed clamping part.

3. The electromagnetic welding fixture according to claim 2, characterized in that: The driving mechanism is a linear motor, a cylinder or a hydraulic cylinder.

4. The electromagnetic welding fixture according to claim 1, characterized in that: It also includes a buckle structure provided at the ends of the movable clamping part and the fixed clamping part for limiting the movable clamping part.

5. The electromagnetic welding fixture according to claim 4, characterized in that: The buckle structure includes a plug post provided at the end of the movable clamping part and a first socket provided at the end of the fixed clamping part and corresponding to the plug post; a slot is provided at the outer wall of the plug post; a second socket is provided at the outer wall of the end of the fixed clamping part, which is connected to the first socket and corresponds to the slot; a movable column is provided in the second socket, and the movable column includes a hand-held part extending out of the second socket, a connecting column and a clamping column; the diameter of the clamping column is larger than the diameter of the connecting column to form a step surface; a spring is sleeved on the outer wall of the connecting column, and the two ends of the spring respectively abut against the step surface and the end wall of the second socket.

6. The electromagnetic welding fixture according to claim 5, characterized in that: A guiding inclined surface is provided at the end of the inserting column, and a corresponding arc surface is provided at the end of the clamping column.

7. The electromagnetic welding fixture according to claim 1, characterized in that: It also includes a fan arranged in the end of the fixed clamping part for heat dissipation.

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